AuxXxilium/linux_dsm_epyc7002
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[media] tw686x-kh: use the cached value

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the dma_requests field is cached, but cache is not used:

drivers/staging/media/tw686x-kh/tw686x-kh-video.c: In function 'tw686x_video_irq':
drivers/staging/media/tw686x-kh/tw686x-kh-video.c:622:6: warning: variable 'requests' set but not used [-Wunused-but-set-variable]
  u32 requests;
      ^

Use the cache instead, as it seems reading it needs to be done
with spin lock taken.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Mauro Carvalho Chehab 2016-04-20 13:39:20 -03:00
parent 704a84ccdb
commit 13431509a4
1 changed files with 1 additions and 1 deletions
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2
drivers/staging/media/tw686x-kh/tw686x-kh-video.c
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@ -625,7 +625,7 @@ int tw686x_video_irq(struct tw686x_dev *dev)
requests = dev->dma_requests;
spin_unlock_irqrestore(&dev->irq_lock, flags);
if (dev->dma_requests & dev->video_active) {
if (requests & dev->video_active) {
wake_up_interruptible_all(&dev->video_thread_wait);
handled = 1;
}