V4L/DVB (7854): cx18/ivtv: improve and fix out-of-memory handling

- don't show kernel backtrace when the allocation of the buffers fails: the
  normal ivtv/cx18 messages are clear enough and the backtrace scares users.
- fix cleanup after the buffer allocation fails (caused kernel panic).

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/media/video/cx18/cx18-queue.c b/drivers/media/video/cx18/cx18-queue.c
index 65af1bb507ca..4ef6996b2048 100644
--- a/drivers/media/video/cx18/cx18-queue.c
+++ b/drivers/media/video/cx18/cx18-queue.c
@@ -239,12 +239,12 @@ int cx18_stream_alloc(struct cx18_stream *s)
 
         /* allocate stream buffers. Initially all buffers are in q_free. */
         for (i = 0; i < s->buffers; i++) {
-                struct cx18_buffer *buf =
-                        kzalloc(sizeof(struct cx18_buffer), GFP_KERNEL);
+                struct cx18_buffer *buf = kzalloc(sizeof(struct cx18_buffer),
+                                                GFP_KERNEL|__GFP_NOWARN);
 
                 if (buf == NULL)
                         break;
-                buf->buf = kmalloc(s->buf_size, GFP_KERNEL);
+                buf->buf = kmalloc(s->buf_size, GFP_KERNEL|__GFP_NOWARN);
                 if (buf->buf == NULL) {
                         kfree(buf);
                         break;