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[9610] fbdev: dpu: fixed prevent issue
authorhwangjae lee <hj-yo.lee@samsung.com>
Fri, 12 Oct 2018 04:11:34 +0000 (13:11 +0900)
committerCosmin Tanislav <demonsingur@gmail.com>
Mon, 22 Apr 2024 17:23:06 +0000 (20:23 +0300)
CID: 232758

Change-Id: I8f7610a720a17282a09acf6c3c81d0ea2d8195f6
Signed-off-by: hwangjae lee <hj-yo.lee@samsung.com>
drivers/video/fbdev/exynos/dpu20/dpp_drv.c patch | blob | blame | history

diff --git a/drivers/video/fbdev/exynos/dpu20/dpp_drv.c b/drivers/video/fbdev/exynos/dpu20/dpp_drv.c
index 4a154cc011fe55cf80ccf1548a08a47a70f86fc5..8902ef11f7ab2e2d0a6dcc045f9b50e6b6e642ed 100644 (file)
--- a/drivers/video/fbdev/exynos/dpu20/dpp_drv.c
+++ b/drivers/video/fbdev/exynos/dpu20/dpp_drv.c
@@ -547,6 +547,11 @@ static long dpp_subdev_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg
                break;
 
        case DPP_GET_PORT_NUM:
+               if (!arg) {
+                       dpp_err("failed to get dpp port num\n");
+                       ret = -EINVAL;
+                       break;
+               }
                *(int *)arg = dpp->port;
                break;