tegra-camera: Fix potential NULL ptr dereference

This fix coverity issue : 9741833, 9741834

Bug 200741055

Change-Id: I0d6ab11a32fb7f29430adfe28c54a7b2b2a22698
Signed-off-by: Achal Verma <achalv@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2571929
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Dmitry Pervushin <dpervushin@nvidia.com>
Reviewed-by: Amrita Deshmukh <amritad@nvidia.com>
GVS: Gerrit_Virtual_Submit
(cherry picked from commit 954e8d421ec24359a64542dd2777267b3d9bdb81)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2574546
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Phoenix Jung <pjung@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 5 insertions, 3 deletions

diff --git a/drivers/media/platform/tegra/camera/tests/sensor_dt_test.c b/drivers/media/platform/tegra/camera/tests/sensor_dt_test.c
index d1d696c4a..045700975 100644
--- a/drivers/media/platform/tegra/camera/tests/sensor_dt_test.c
+++ b/drivers/media/platform/tegra/camera/tests/sensor_dt_test.c
@@ -1,7 +1,7 @@
 /*
  * sensor_dt_test - sensor device tree test
  *
- * Copyright (c) 2019, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2019-2021, NVIDIA CORPORATION.  All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
@@ -907,8 +907,10 @@ int sensor_verify_dt(struct device_node *node, const u32 tvcf_version)
         err = sv_dt_verify_full_dt(node, root_node);
 
 sv_fail:
-        sv_dt_free_node(root_node);
-        sv_dt_free_node(modeX_node);
+        if (root_node)
+                sv_dt_free_node(root_node);
+        if (modeX_node)
+                sv_dt_free_node(modeX_node);
 
         if (err == 0)
                 camtest_log(KERN_INFO "Sensor DT test passed\n");