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| * | USB: serial: fix generic disconnect implementationJohan Hovold2013-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | There is no need for the generic disconnect callback to stop the read and write urbs a second time as this has already been taken care of by close (which is called from hangup as part of disconnect). Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | USB: ssu100: remove custom close operationJohan Hovold2013-03-25
| | | | | | | | | | | | | | | | | | | | | | | | The generic close operation will be used if the close field is left uninitialised. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | USB: ssu100: remove explicit initialisation of disconnectJohan Hovold2013-03-25
| | | | | | | | | | | | | | | | | | | | | | | | The disconnect callback is set to the generic implementation by usb-serial core if NULL. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | USB: serial: remove bogus disconnect test in cleanupJohan Hovold2013-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove bogus (and unnecessary) test for serial->dev being NULL in cleanup. The device is never cleared, and cleanup is never called after a completed disconnect anyway. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | USB: usb_wwan: remove bogus disconnect test in closeJohan Hovold2013-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove bogus (and unnecessary) test for serial->dev being NULL in close. The device is never cleared, and close is never called after a completed disconnect anyway. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | USB: sierra: remove bogus disconnect test in closeJohan Hovold2013-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove bogus (and unnecessary) test for serial->dev being NULL in close. The device is never cleared, and close is never called after a completed disconnect anyway. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | USB: mos7840: remove bogus disconnect test in closeJohan Hovold2013-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove bogus (and unnecessary) test for serial->dev being NULL in close. The device is never cleared, and close is never called after a completed disconnect anyway. Simplify urb killing, and remove some related debug and dead code while at it. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | USB: keyspan_pda: remove bogus disconnect test in closeJohan Hovold2013-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove bogus (and unnecessary) test for serial->dev being NULL in close. The device is never cleared, and close is never called after a completed disconnect anyway. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | USB: keyspan_pda: remove bogus disconnect test from dtr_rtsJohan Hovold2013-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove bogus (and unnecessary) test for serial->dev being NULL in dtr_rts. The device is never cleared, and disconnect is handled for dtr_rts in usb-serial core anyway. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | USB: keyspan: remove bogus disconnect test in closeJohan Hovold2013-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove bogus (and unnecessary) test for serial->dev being NULL in close. The device is never cleared, and close is never called after a completed disconnect anyway. Remove some out-commented bogus code while at it. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | USB: iuu_phoenix: remove bogus disconnect test in closeJohan Hovold2013-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove bogus (and unnecessary) test for serial->dev being NULL in close. The device is never cleared, and close is never called after a completed disconnect anyway. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | USB: digi_acceleport: remove bogus disconnect test in closeJohan Hovold2013-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove bogus (and unnecessary) test for serial->dev being NULL in close. The device is never cleared, and close is never called after a completed disconnect anyway. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | USB: cyberjack: remove bogus disconnect test in closeJohan Hovold2013-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove bogus (and unnecessary) test for serial->dev being NULL in close. The device is never cleared, and close is never called after a completed disconnect anyway. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | USB: ark3116: remove bogus disconnect test in closeJohan Hovold2013-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove bogus (and unnecessary) test for serial->dev being NULL in close. The device is never cleared, and close is never called after a completed disconnect anyway. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | USB: serial: remove port number from generic-driver debugJohan Hovold2013-03-25
| | | | | | | | | | | | | | | | | | | | | | | | Remove redundant port number from debug output (already printed as part of device name). Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | USB: serial: remove redundant allocation error messagesJohan Hovold2013-03-25
| | | | | | | | | | | | | | | | | | | | | Failed allocations already get an OOM message and a stack dump. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | USB: serial: clean up debug infoJohan Hovold2013-03-25
| | | | | | | | | | | | | | | | | | | | | | | | Remove redundant port number from debug output (already printed as part of device name). Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | USB: serial: remove redundant commentsJohan Hovold2013-03-25
| | | | | | | | | | | | | | | | | | | | | Remove redundant comments and fix some minor coding style issues. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | USB: serial: rename tty-port callbacksJohan Hovold2013-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rename the tty-port callbacks using a common prefix to more clearly separate them from the tty and usb driver callbacks. Rename serial_down to serial_port_shutdown to match the callback name. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | USB: pl2303: make set_control_lines a port operationJohan Hovold2013-03-25
| | | | | | | | | | | | | | | | | | | | | | | | Pass usb-serial port rather than usb device to set_control_lines, and make sure port device is used for all port related debugging. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | USB: pl2303: use interface device for debugJohan Hovold2013-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use interface rather than usb-serial device for debugging interface related operations. This gives more descriptive messages, such as [ 905.669436] pl2303 1-4.1:1.0: 0x40:0x1:0x8:0x0 0 rather than [ 341.943535] usb 1-4.1: 0x40:0x1:0x8:0x0 0 Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | USB: iuu_phoenix: remove unnecessary urb kill on closeJohan Hovold2013-03-25
| | | | | | | | | | | | | | | | | | | | | Remove kill of interrupt-in urb on close as it has never been submitted. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | USB: kl5kusb105: remove unnecessary urb kill on closeJohan Hovold2013-03-25
| | | | | | | | | | | | | | | | | | | | | Remove kill of interrupt-in urb on close as it has never been submitted. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | USB: ftdi_sio: remove obsolete port data refcountingJohan Hovold2013-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the port data refcounting and release the private data explicitly at port remove. The port data refcounting was used to make sure the port data was not freed until the last tty reference was closed. Since moving over to tty ports, the underlying assumptions are no longer valid as close is now called as part of tty port shutdown, which can occur before the final tty reference is dropped on device disconnect. This means that the private port data refcounting is now completely useless, as the last reference will always be dropped on port_remove. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | USB: serial: comments on suspend failureMing Lei2013-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If suspend callback fails in system sleep context, usb core will ignore the failure and let system sleep go ahead further, so this patch comments on the case and requires that serial->type->suspend() MUST return 0 in system sleep context. Acked-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Ming Lei <ming.lei@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | Merge 3.9-rc4 into usb-nextGreg Kroah-Hartman2013-03-25
| |\ \ | | | | | | | | | | | | | | | | | | | | This picks up the fixes we had for USB in 3.9-rc4 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | Revert "USB: quatech2: only write to the tty if the port is open."Bill Pemberton2013-03-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 27b351c5546008c640b3e65152f60ca74b3706f1. Calling tty_flip_buffer_push on an unopened tty is legal, so the driver doesn't need track if port has been opened. Reverting this allows the entire is_open logic to be removed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | Merge branch 'usb-linus' into usb-nextGreg Kroah-Hartman2013-03-20
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is to pick up the fixes in that branch, and let Alan fix the merge error in drivers/usb/host/ehci-timer.c better than I just did (as I know I messed it up...) Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | usb: serial: Remove redundant NULL check before kfreeSyam Sidhardhan2013-03-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | kfree on NULL pointer is a no-op. Signed-off-by: Syam Sidhardhan <s.syam@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | usb/serial: Remove unnecessary check for consolePeter Hurley2013-03-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The tty port ops shutdown() routine is not called for console ports; remove extra check. Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Acked-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | | | Merge 3.9-rc5 into tty-nextGreg Kroah-Hartman2013-04-01
|\ \ \ \ \ | | |_|_|/ | |/| | | | | | | | | | | | | | | | | | We need the fixes here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | usb: ftdi_sio: Add support for Mitsubishi FX-USB-AW/-BDKonstantin Holoborodko2013-03-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It enhances the driver for FTDI-based USB serial adapters to recognize Mitsubishi Electric Corp. USB/RS422 Converters as FT232BM chips and support them. https://search.meau.com/?q=FX-USB-AW Signed-off-by: Konstantin Holoborodko <klh.kernel@gmail.com> Tested-by: Konstantin Holoborodko <klh.kernel@gmail.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | USB: serial: fix hang when opening portMing Lei2013-03-26
| | |_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Johan's 'fix use-after-free in TIOCMIWAIT' patchset[1] introduces one bug which can cause kernel hang when opening port. This patch initialized the 'port->delta_msr_wait' waitqueue head to fix the bug which is introduced in 3.9-rc4. [1], http://marc.info/?l=linux-usb&m=136368139627876&w=2 Cc: stable <stable@vger.kernel.org> Signed-off-by: Ming Lei <tom.leiming@gmail.com> Acked-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | USB: ti_usb_3410_5052: fix use-after-free in TIOCMIWAITJohan Hovold2013-03-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the port wait queue and make sure to check the serial disconnected flag before accessing private port data after waking up. This is is needed as the private port data (including the wait queue itself) can be gone when waking up after a disconnect. Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | USB: ssu100: fix use-after-free in TIOCMIWAITJohan Hovold2013-03-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the port wait queue and make sure to check the serial disconnected flag before accessing private port data after waking up. This is is needed as the private port data (including the wait queue itself) can be gone when waking up after a disconnect. Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | USB: spcp8x5: fix use-after-free in TIOCMIWAITJohan Hovold2013-03-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the port wait queue and make sure to check the serial disconnected flag before accessing private port data after waking up. This is is needed as the private port data (including the wait queue itself) can be gone when waking up after a disconnect. Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | USB: quatech2: fix use-after-free in TIOCMIWAITJohan Hovold2013-03-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the port wait queue and make sure to check the serial disconnected flag before accessing private port data after waking up. This is is needed as the private port data (including the wait queue itself) can be gone when waking up after a disconnect. Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | USB: pl2303: fix use-after-free in TIOCMIWAITJohan Hovold2013-03-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the port wait queue and make sure to check the serial disconnected flag before accessing private port data after waking up. This is is needed as the private port data (including the wait queue itself) can be gone when waking up after a disconnect. Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | USB: oti6858: fix use-after-free in TIOCMIWAITJohan Hovold2013-03-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the port wait queue and make sure to check the serial disconnected flag before accessing private port data after waking up. This is is needed as the private port data (including the wait queue itself) can be gone when waking up after a disconnect. Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | USB: mos7840: fix use-after-free in TIOCMIWAITJohan Hovold2013-03-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the port wait queue and make sure to check the serial disconnected flag before accessing private port data after waking up. This is is needed as the private port data (including the wait queue itself) can be gone when waking up after a disconnect. Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | USB: mos7840: fix broken TIOCMIWAITJohan Hovold2013-03-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make sure waiting processes are woken on modem-status changes. Currently processes are only woken on termios changes regardless of whether the modem status has changed. Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | USB: mct_u232: fix use-after-free in TIOCMIWAITJohan Hovold2013-03-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the port wait queue and make sure to check the serial disconnected flag before accessing private port data after waking up. This is is needed as the private port data (including the wait queue itself) can be gone when waking up after a disconnect. Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | USB: io_ti: fix use-after-free in TIOCMIWAITJohan Hovold2013-03-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the port wait queue and make sure to check the serial disconnected flag before accessing private port data after waking up. This is is needed as the private port data (including the wait queue itself) can be gone when waking up after a disconnect. Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | USB: io_edgeport: fix use-after-free in TIOCMIWAITJohan Hovold2013-03-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the port wait queue and make sure to check the serial disconnected flag before accessing private port data after waking up. This is is needed as the private port data (including the wait queue itself) can be gone when waking up after a disconnect. Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | USB: ftdi_sio: fix use-after-free in TIOCMIWAITJohan Hovold2013-03-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the port wait queue and make sure to check the serial disconnected flag before accessing private port data after waking up. This is is needed as the private port data (including the wait queue itself) can be gone when waking up after a disconnect. When switching to tty ports, some lifetime assumptions were changed. Specifically, close can now be called before the final tty reference is dropped as part of hangup at device disconnect. Even with the ftdi private-data refcounting this means that the port private data can be freed while a process is sleeping on modem-status changes and thus cannot be relied on to detect disconnects when woken up. Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | USB: f81232: fix use-after-free in TIOCMIWAITJohan Hovold2013-03-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the port wait queue and make sure to check the serial disconnected flag before accessing private port data after waking up. This is is needed as the private port data (including the wait queue itself) can be gone when waking up after a disconnect. Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | USB: cypress_m8: fix use-after-free in TIOCMIWAITJohan Hovold2013-03-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the port wait queue and make sure to check the serial disconnected flag before accessing private port data after waking up. This is is needed as the private port data (including the wait queue itself) can be gone when waking up after a disconnect. Also remove bogus test for private data pointer being NULL as it is never assigned in the loop. Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | USB: ch341: fix use-after-free in TIOCMIWAITJohan Hovold2013-03-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the port wait queue and make sure to check the serial disconnected flag before accessing private port data after waking up. This is is needed as the private port data (including the wait queue itself) can be gone when waking up after a disconnect. Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | USB: ark3116: fix use-after-free in TIOCMIWAITJohan Hovold2013-03-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the port wait queue and make sure to check the serial disconnected flag before accessing private port data after waking up. This is is needed as the private port data (including the wait queue itself) can be gone when waking up after a disconnect. Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | USB: serial: fix interface refcountingJohan Hovold2013-03-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make sure the interface is not released before our serial device. Note that drivers are still not allowed to access the interface in any way that may interfere with another driver that may have gotten bound to the same interface after disconnect returns. Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
generated by cgit v1.2.2 (git 2.25.0) at 2025-08-04 09:56:44 -0400