From 9a211062bff9e9dee4c0c10545e524fb7449605f Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Tue, 23 Jan 2007 20:04:13 -0300 Subject: [PATCH] V4L: buf_qbuf: fix videobuf_queue->stream corruption and lockup We are doing ->buf_prepare(buf) before adding buf to q->stream list. This means that videobuf_qbuf() should not try to re-add a STATE_PREPARED buffer. Signed-off-by: Oleg Nesterov Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Michael Krufky (cherry picked from commit 419dd8378dfa32985672ab7927b4bc827f33b332) --- drivers/media/video/video-buf.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/drivers/media/video/video-buf.c b/drivers/media/video/video-buf.c index f429f49..3f65fb6 100644 --- a/drivers/media/video/video-buf.c +++ b/drivers/media/video/video-buf.c @@ -700,6 +700,7 @@ videobuf_qbuf(struct videobuf_queue *q, goto done; } if (buf->state == STATE_QUEUED || + buf->state == STATE_PREPARED || buf->state == STATE_ACTIVE) { dprintk(1,"qbuf: buffer is already queued or active.\n"); goto done; -- 1.4.4.2