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authorGreg Kroah-Hartman <gregkh@suse.de>2006-05-02 08:44:45 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2006-05-12 11:58:10 -0700
commitdf3fccb14ad02c5fabe095a104a0323c223f2833 (patch)
tree4db98656e7dedd27139bdb5de5e85ee847695b4a
parent815ddc99dd8108908d14c699a37d0f5974da6def (diff)
downloadlinux-df3fccb14ad02c5fabe095a104a0323c223f2833.tar.gz
[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>
-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 4d40704dea2..238033a8709 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
return (0);
}
- spin_lock(&port->lock);
- if (port->write_urb_busy) {
- spin_unlock(&port->lock);
+ spin_lock(&wport->lock);
+ if (wport->write_urb_busy) {
+ spin_unlock(&wport->lock);
dbg("%s - already writing", __FUNCTION__);
return 0;
}
- port->write_urb_busy = 1;
- spin_unlock(&port->lock);
+ wport->write_urb_busy = 1;
+ spin_unlock(&wport->lock);
count = (count > OMNINET_BULKOUTSIZE) ? OMNINET_BULKOUTSIZE : count;
@@ -283,7 +283,7 @@ static int omninet_write (struct usb_serial_port *port, const unsigned char *buf
wport->write_urb->dev = serial->dev;
result = usb_submit_urb(wport->write_urb, GFP_ATOMIC);
if (result) {
- port->write_urb_busy = 0;
+ wport->write_urb_busy = 0;
err("%s - failed submitting write urb, error %d", __FUNCTION__, result);
} else
result = count;