From 9501843496aaf85fe1767b534c4720622c4425c4 Mon Sep 17 00:00:00 2001 From: Jean-Francois Moine Date: Sat, 26 Dec 2009 08:41:17 -0300 Subject: V4L/DVB (13875): gspca - vc032x: Fix a possible crash with the vc0321 bridge. The frame pointer returned by get_i_frame may be NULL when the application is too slow. Signed-off-by: Jean-Francois Moine Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/gspca/vc032x.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/media/video/gspca/vc032x.c') diff --git a/drivers/media/video/gspca/vc032x.c b/drivers/media/video/gspca/vc032x.c index c090efcd8045..71921c878424 100644 --- a/drivers/media/video/gspca/vc032x.c +++ b/drivers/media/video/gspca/vc032x.c @@ -3009,6 +3009,10 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, int l; frame = gspca_get_i_frame(gspca_dev); + if (frame == NULL) { + gspca_dev->last_packet_type = DISCARD_PACKET; + return; + } l = frame->data_end - frame->data; if (len > frame->v4l2_buf.length - l) len = frame->v4l2_buf.length - l; -- cgit v1.2.3-59-g8ed1b