diff options
author | Alan <alan@lxorguk.ukuu.org.uk> | 2006-12-04 11:43:01 -0500 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-12-20 13:13:23 -0500 |
commit | b1cff285ae8d21012ad3717e412b0f50066dc061 (patch) | |
tree | d702adfe11a2279e0944fa42d6fb59eb677cbf62 /drivers/usb/serial/kl5kusb105.c | |
parent | 337445313ffb7a7e97f408500c7448044d54f921 (diff) |
usb serial: Eliminate bogus ioctl code
Several drivers have bogus ioctl code that tries unneccessarily to
override the standard processing. In the three cases here the actual code
is not only wrong but also not required as they implement the proper
set_termios method as well.
Remove the junk.
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/serial/kl5kusb105.c')
-rw-r--r-- | drivers/usb/serial/kl5kusb105.c | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/drivers/usb/serial/kl5kusb105.c b/drivers/usb/serial/kl5kusb105.c index 73d755df4840..5c4b06a99ac0 100644 --- a/drivers/usb/serial/kl5kusb105.c +++ b/drivers/usb/serial/kl5kusb105.c | |||
@@ -87,10 +87,6 @@ static int klsi_105_write_room (struct usb_serial_port *port); | |||
87 | static void klsi_105_read_bulk_callback (struct urb *urb); | 87 | static void klsi_105_read_bulk_callback (struct urb *urb); |
88 | static void klsi_105_set_termios (struct usb_serial_port *port, | 88 | static void klsi_105_set_termios (struct usb_serial_port *port, |
89 | struct ktermios *old); | 89 | struct ktermios *old); |
90 | static int klsi_105_ioctl (struct usb_serial_port *port, | ||
91 | struct file * file, | ||
92 | unsigned int cmd, | ||
93 | unsigned long arg); | ||
94 | static void klsi_105_throttle (struct usb_serial_port *port); | 90 | static void klsi_105_throttle (struct usb_serial_port *port); |
95 | static void klsi_105_unthrottle (struct usb_serial_port *port); | 91 | static void klsi_105_unthrottle (struct usb_serial_port *port); |
96 | /* | 92 | /* |
@@ -140,7 +136,6 @@ static struct usb_serial_driver kl5kusb105d_device = { | |||
140 | .chars_in_buffer = klsi_105_chars_in_buffer, | 136 | .chars_in_buffer = klsi_105_chars_in_buffer, |
141 | .write_room = klsi_105_write_room, | 137 | .write_room = klsi_105_write_room, |
142 | .read_bulk_callback =klsi_105_read_bulk_callback, | 138 | .read_bulk_callback =klsi_105_read_bulk_callback, |
143 | .ioctl = klsi_105_ioctl, | ||
144 | .set_termios = klsi_105_set_termios, | 139 | .set_termios = klsi_105_set_termios, |
145 | /*.break_ctl = klsi_105_break_ctl,*/ | 140 | /*.break_ctl = klsi_105_break_ctl,*/ |
146 | .tiocmget = klsi_105_tiocmget, | 141 | .tiocmget = klsi_105_tiocmget, |
@@ -899,69 +894,6 @@ static int klsi_105_tiocmset (struct usb_serial_port *port, struct file *file, | |||
899 | */ | 894 | */ |
900 | return retval; | 895 | return retval; |
901 | } | 896 | } |
902 | |||
903 | static int klsi_105_ioctl (struct usb_serial_port *port, struct file * file, | ||
904 | unsigned int cmd, unsigned long arg) | ||
905 | { | ||
906 | struct klsi_105_private *priv = usb_get_serial_port_data(port); | ||
907 | void __user *user_arg = (void __user *)arg; | ||
908 | |||
909 | dbg("%scmd=0x%x", __FUNCTION__, cmd); | ||
910 | |||
911 | /* Based on code from acm.c and others */ | ||
912 | switch (cmd) { | ||
913 | case TIOCMIWAIT: | ||
914 | /* wait for any of the 4 modem inputs (DCD,RI,DSR,CTS)*/ | ||
915 | /* TODO */ | ||
916 | dbg("%s - TIOCMIWAIT not handled", __FUNCTION__); | ||
917 | return -ENOIOCTLCMD; | ||
918 | case TIOCGICOUNT: | ||
919 | /* return count of modemline transitions */ | ||
920 | /* TODO */ | ||
921 | dbg("%s - TIOCGICOUNT not handled", __FUNCTION__); | ||
922 | return -ENOIOCTLCMD; | ||
923 | case TCGETS: | ||
924 | /* return current info to caller */ | ||
925 | dbg("%s - TCGETS data faked/incomplete", __FUNCTION__); | ||
926 | |||
927 | if (!access_ok(VERIFY_WRITE, user_arg, sizeof(struct termios))) | ||
928 | return -EFAULT; | ||
929 | |||
930 | if (kernel_termios_to_user_termios((struct termios __user *)arg, | ||
931 | &priv->termios)) | ||
932 | return -EFAULT; | ||
933 | return 0; | ||
934 | case TCSETS: | ||
935 | /* set port termios to the one given by the user */ | ||
936 | dbg("%s - TCSETS not handled", __FUNCTION__); | ||
937 | |||
938 | if (!access_ok(VERIFY_READ, user_arg, sizeof(struct termios))) | ||
939 | return -EFAULT; | ||
940 | |||
941 | if (user_termios_to_kernel_termios(&priv->termios, | ||
942 | (struct termios __user *)arg)) | ||
943 | return -EFAULT; | ||
944 | klsi_105_set_termios(port, &priv->termios); | ||
945 | return 0; | ||
946 | case TCSETSW: { | ||
947 | /* set port termios and try to wait for completion of last | ||
948 | * write operation */ | ||
949 | /* We guess here. If there are not too many write urbs | ||
950 | * outstanding, we lie. */ | ||
951 | /* what is the right way to wait here? schedule() ? */ | ||
952 | /* | ||
953 | while (klsi_105_chars_in_buffer(port) > (NUM_URBS / 4 ) * URB_TRANSFER_BUFFER_SIZE) | ||
954 | schedule(); | ||
955 | */ | ||
956 | return -ENOIOCTLCMD; | ||
957 | } | ||
958 | default: | ||
959 | dbg("%s: arg not supported - 0x%04x", __FUNCTION__,cmd); | ||
960 | return(-ENOIOCTLCMD); | ||
961 | break; | ||
962 | } | ||
963 | return 0; | ||
964 | } /* klsi_105_ioctl */ | ||
965 | 897 | ||
966 | static void klsi_105_throttle (struct usb_serial_port *port) | 898 | static void klsi_105_throttle (struct usb_serial_port *port) |
967 | { | 899 | { |