V4L/DVB: V4L2: Replace loops for finding max buffers in VIDIOC_REQBUFS callbacks

Due to obvious copy and paste coding a number of video capture drivers
which implement a limit on the buffer memory decremented the user
supplied buffer count in a while loop until it reaches an acceptable
value.

This is a silly thing to do when the maximum value can be directly
computed.

Signed-off-by: Andreas Bombe <aeb@debian.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/media/video/s2255drv.c b/drivers/media/video/s2255drv.c
index 0092ff52bb27..5ecd41b3bf3e 100644
--- a/drivers/media/video/s2255drv.c
+++ b/drivers/media/video/s2255drv.c
@@ -702,8 +702,8 @@ static int buffer_setup(struct videobuf_queue *vq, unsigned int *count,
         if (0 == *count)
                 *count = S2255_DEF_BUFS;
 
-        while (*size * (*count) > vid_limit * 1024 * 1024)
-                (*count)--;
+        if (*size * *count > vid_limit * 1024 * 1024)
+                *count = (vid_limit * 1024 * 1024) / *size;
 
         return 0;
 }