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authorGreg Kroah-Hartman <gregkh@suse.de>2006-05-02 02:44:45 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2006-05-12 14:58:10 -0400
commitdf3fccb14ad02c5fabe095a104a0323c223f2833 (patch)
tree4db98656e7dedd27139bdb5de5e85ee847695b4a /drivers/usb
parent815ddc99dd8108908d14c699a37d0f5974da6def (diff)
[PATCH] USB: fix omninet driver bug
I introduced this way back in 2.6.13 when adding the port lock logic. This device talks out through different "ports" all at the same time, so the lock logic was wrong, preventing any data from ever being sent properly. Thanks a lot to Bernhard Reiter <bernhard@intevation.de> for being patient and helping with debugging this. Cc: Bernhard Reiter <bernhard@intevation.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/serial/omninet.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/usb/serial/omninet.c b/drivers/usb/serial/omninet.c
index 4d40704dea2c..238033a87092 100644
--- a/drivers/usb/serial/omninet.c
+++ b/drivers/usb/serial/omninet.c
@@ -257,14 +257,14 @@ static int omninet_write (struct usb_serial_port *port, const unsigned char *buf
257 return (0); 257 return (0);
258 } 258 }
259 259
260 spin_lock(&port->lock); 260 spin_lock(&wport->lock);
261 if (port->write_urb_busy) { 261 if (wport->write_urb_busy) {
262 spin_unlock(&port->lock); 262 spin_unlock(&wport->lock);
263 dbg("%s - already writing", __FUNCTION__); 263 dbg("%s - already writing", __FUNCTION__);
264 return 0; 264 return 0;
265 } 265 }
266 port->write_urb_busy = 1; 266 wport->write_urb_busy = 1;
267 spin_unlock(&port->lock); 267 spin_unlock(&wport->lock);
268 268
269 count = (count > OMNINET_BULKOUTSIZE) ? OMNINET_BULKOUTSIZE : count; 269 count = (count > OMNINET_BULKOUTSIZE) ? OMNINET_BULKOUTSIZE : count;
270 270
@@ -283,7 +283,7 @@ static int omninet_write (struct usb_serial_port *port, const unsigned char *buf
283 wport->write_urb->dev = serial->dev; 283 wport->write_urb->dev = serial->dev;
284 result = usb_submit_urb(wport->write_urb, GFP_ATOMIC); 284 result = usb_submit_urb(wport->write_urb, GFP_ATOMIC);
285 if (result) { 285 if (result) {
286 port->write_urb_busy = 0; 286 wport->write_urb_busy = 0;
287 err("%s - failed submitting write urb, error %d", __FUNCTION__, result); 287 err("%s - failed submitting write urb, error %d", __FUNCTION__, result);
288 } else 288 } else
289 result = count; 289 result = count;