From 9e23c810d58910565767549d3692208a085f8add Mon Sep 17 00:00:00 2001
From: Andreas Pokorny <andreas.pokorny@gmail.com>
Date: Sat, 6 Oct 2018 15:33:47 +0200
Subject: [PATCH] Fix null pointer access inside msm camera

Change-Id: I29f3f200d7c7760c1cdd50f95973a3729d6f8380
---
 drivers/media/platform/msm/camera_v1/msm_mctl.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/media/platform/msm/camera_v1/msm_mctl.c b/drivers/media/platform/msm/camera_v1/msm_mctl.c
index 7c0ecf09320a32..b3bb7529696420 100644
--- a/drivers/media/platform/msm/camera_v1/msm_mctl.c
+++ b/drivers/media/platform/msm/camera_v1/msm_mctl.c
@@ -878,8 +878,17 @@ static int msm_mctl_dev_close(struct file *f)
 	struct msm_cam_v4l2_device *pcam;
 	struct msm_cam_v4l2_dev_inst *pcam_inst;
 	struct msm_cam_media_controller *pmctl;
+
+        if (f == NULL) {
+		pr_err("%s :: cannot close video driver", __func__);
+		return -EINVAL;
+	}
 	pcam_inst = container_of(f->private_data,
 		struct msm_cam_v4l2_dev_inst, eventHandle);
+	if (!pcam_inst) {
+		pr_err("%s NULL pointer of container!\n", __func__);
+		return -EINVAL;
+	}
 	pcam = pcam_inst->pcam;
 
 	D("%s : E ", __func__);