diff options
Diffstat (limited to 'drivers/media/video/gspca/sn9c20x.c')
| -rw-r--r-- | drivers/media/video/gspca/sn9c20x.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/media/video/gspca/sn9c20x.c b/drivers/media/video/gspca/sn9c20x.c index 9e198b4..e54bf54 100644 --- a/drivers/media/video/gspca/sn9c20x.c +++ b/drivers/media/video/gspca/sn9c20x.c @@ -2457,7 +2457,7 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, int avg_lum; static u8 frame_header[] = {0xff, 0xff, 0x00, 0xc4, 0xc4, 0x96}; - if (len == 64 && memcmp(data, frame_header, 6) == 0) { + if (len >= 64 && memcmp(data, frame_header, 6) == 0) { avg_lum = ((data[35] >> 2) & 3) | (data[20] << 2) | (data[19] << 10); @@ -2485,7 +2485,10 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, avg_lum >>= 9; atomic_set(&sd->avg_lum, avg_lum); gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0); - return; + len -= 64; + if (len == 0) + return; + data += 64; } if (gspca_dev->last_packet_type == LAST_PACKET) { if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv |
