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/cx23885/cx23885-video.c b/drivers/media/video/cx23885/cx23885-video.c
index 2d3ac8b83dc3..543b854f6a62 100644
--- a/drivers/media/video/cx23885/cx23885-video.c
+++ b/drivers/media/video/cx23885/cx23885-video.c
@@ -514,8 +514,8 @@ static int buffer_setup(struct videobuf_queue *q, unsigned int *count,
         *size = fh->fmt->depth*fh->width*fh->height >> 3;
         if (0 == *count)
                 *count = 32;
-        while (*size * *count > vid_limit * 1024 * 1024)
-                (*count)--;
+        if (*size * *count > vid_limit * 1024 * 1024)
+                *count = (vid_limit * 1024 * 1024) / *size;
         return 0;
 }