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USB: fix usb_serial_suspend(): buggy code

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Am Montag 23 Juli 2007 schrieb Adrian Bunk:
> Commit ec22559e0b7a05283a3413bda5d177e42c950e23 added the following 
> function to drivers/usb/serial/usb-serial.c:
> 
[..]
> 
> The Coverity checker spotted the inconsequent NULL checking for "serial".
> 
> Looking at the code it also doesn't seem to have been intended to always 
> return 0.

Coverity is right. The check for NULL is wrongly done and the error
return is lost.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Oliver Neukum 2007-07-23 08:58:39 +02:00 committed by Greg Kroah-Hartman
parent 209b3cfd53
commit e31c18804f
1 changed files with 8 additions and 7 deletions
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15
drivers/usb/serial/usb-serial.c
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@ -1077,16 +1077,17 @@ int usb_serial_suspend(struct usb_interface *intf, pm_message_t message)
struct usb_serial_port *port;
int i, r = 0;
if (serial) {
for (i = 0; i < serial->num_ports; ++i) {
port = serial->port[i];
if (port)
kill_traffic(port);
}
if (!serial) /* device has been disconnected */
return 0;
for (i = 0; i < serial->num_ports; ++i) {
port = serial->port[i];
if (port)
kill_traffic(port);
}
if (serial->type->suspend)
serial->type->suspend(serial, message);
r = serial->type->suspend(serial, message);
return r;
}