From b8bfb5fb348d939a96fc8f71996a2e5e48b4544b Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Sat, 13 Jun 2009 18:56:22 -0300 Subject: [PATCH] V4L/DVB (12071): gspca: fix NULL pointer deref in query_ctrl gspca: fix NULL pointer deref in query_ctrl Signed-off-by: Hans de Goede Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/gspca/gspca.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c index f7e0355ad644..1e89600986c8 100644 --- a/drivers/media/video/gspca/gspca.c +++ b/drivers/media/video/gspca/gspca.c @@ -1042,13 +1042,11 @@ static int vidioc_queryctrl(struct file *file, void *priv, for (i = 0; i < gspca_dev->sd_desc->nctrls; i++) { if (gspca_dev->ctrl_dis & (1 << i)) continue; - if (ctrls->qctrl.id < id) + if (gspca_dev->sd_desc->ctrls[i].qctrl.id < id) continue; - if (ctrls != NULL) { - if (gspca_dev->sd_desc->ctrls[i].qctrl.id + if (ctrls && gspca_dev->sd_desc->ctrls[i].qctrl.id > ctrls->qctrl.id) - continue; - } + continue; ctrls = &gspca_dev->sd_desc->ctrls[i]; } } else { -- 2.20.1