[media] tm6000: remove needless check

Smatch reports a warning:
	drivers/media/usb/tm6000/tm6000-video.c:646 tm6000_prepare_isoc() error: we previously assumed 'dev->urb_buffer' could be null (see line 624)

This is not really a problem, but it actually shows that the check
if urb_buffer is NULL is being done twice: at the if and at
tm6000_alloc_urb_buffers().

We don't need to do it twice. So, remove the extra check. The code
become cleaner, and, as a collateral effect, smatch becomes happy.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

diff --git a/drivers/media/usb/tm6000/tm6000-video.c b/drivers/media/usb/tm6000/tm6000-video.c
index 77ce9efe1f2477050b665bde13a24868370f1383..5287d29602824acc5ca77b078cc3c87e43386be1 100644 (file)
--- a/drivers/media/usb/tm6000/tm6000-video.c
+++ b/drivers/media/usb/tm6000/tm6000-video.c
@@ -621,7 +621,7 @@ static int tm6000_prepare_isoc(struct tm6000_core *dev)
                    dev->isoc_in.maxsize, size);
 
 
-       if (!dev->urb_buffer && tm6000_alloc_urb_buffers(dev) < 0) {
+       if (tm6000_alloc_urb_buffers(dev) < 0) {
                tm6000_err("cannot allocate memory for urb buffers\n");
 
                /* call free, as some buffers might have been allocated */