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usb_wwan: fix error in marking device busy 

This fixes two errors:
- the device is busy if a message was recieved even if resubmission fails
- the device is not busy if resubmission fails due to -EPERM

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Oliver Neukum 2011-02-10 15:33:10 +01:00 committed by Greg Kroah-Hartman
parent 8ab10400a0
commit c9c4558f78
1 changed files with 9 additions and 4 deletions
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13
drivers/usb/serial/usb_wwan.c
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@ -305,11 +305,16 @@ static void usb_wwan_indat_callback(struct urb *urb)
/* Resubmit urb so we continue receiving */
if (status != -ESHUTDOWN) {
err = usb_submit_urb(urb, GFP_ATOMIC);
if (err && err != -EPERM)
printk(KERN_ERR "%s: resubmit read urb failed. "
"(%d)", __func__, err);
else
if (err) {
if (err != -EPERM) {
printk(KERN_ERR "%s: resubmit read urb failed. "
"(%d)", __func__, err);
/* busy also in error unless we are killed */
usb_mark_last_busy(port->serial->dev);
}
} else {
usb_mark_last_busy(port->serial->dev);
}
}
}