V4L/DVB (8772): cx18: Convert cx18_queue buffers member to atomic_t

cx18: Convert cx18_queue buffers member to atomic_t.  This allows safe
concurrent access to check if a queue has data without having to acquire the
queue spinlock.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/media/video/cx18/cx18-driver.h b/drivers/media/video/cx18/cx18-driver.h
index 28c490b1b64e..8812a5ec635f 100644
--- a/drivers/media/video/cx18/cx18-driver.h
+++ b/drivers/media/video/cx18/cx18-driver.h
@@ -216,7 +216,7 @@ struct cx18_buffer {
 
 struct cx18_queue {
         struct list_head list;
-        u32 buffers;
+        atomic_t buffers;
         u32 bytesused;
 };