media: pwc-if: must check vb2_queue_init() success
authorMauro Carvalho Chehab <mchehab@redhat.com>
Sat, 27 Oct 2012 17:26:25 +0000 (14:26 -0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 14 Feb 2013 18:48:01 +0000 (10:48 -0800)
commit0dc2f4dcf99e372f49538e6c9949891d08d3091d
tree55bf360a08c58fbf5ddba0aead6782ee9023f544
parent6d468d117d8853f9235480cf6329b99868290b23
media: pwc-if: must check vb2_queue_init() success

commit eda94710d6502672c5ee7de198fa78a63ddfae3a upstream.

drivers/media/usb/pwc/pwc-if.c: In function 'usb_pwc_probe':
drivers/media/usb/pwc/pwc-if.c:1003:16: warning: ignoring return value of 'vb2_queue_init', declared with attribute warn_unused_result [-Wunused-result]
In the past, it used to have a logic there at queue init that would
BUG() on errors. This logic got removed. Drivers are now required
to explicitly handle the queue initialization errors, or very bad
things may happen.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
drivers/media/usb/pwc/pwc-if.c