i2c-ivc: Check return value.

This fixes the coverity issue: 3008845

Bug 200741055

Change-Id: I57112e37a16aec516a21363038c1e6dc511a7f9c
Signed-off-by: Achal Verma <achalv@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2527774
GVS: Gerrit_Virtual_Submit
Reviewed-by: Dmitry Pervushin <dpervushin@nvidia.com>
Reviewed-by: Rahul Jain (SW-TEGRA) <rahuljain@nvidia.com>
(cherry picked from commit efb34ee4c7f2f48ac7910a6936f5e2c1fc8b42af)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2574544
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, 4 insertions, 2 deletions

diff --git a/drivers/i2c/busses/i2c-ivc-multi.c b/drivers/i2c/busses/i2c-ivc-multi.c
index 1722abfea..2ae795650 100644
--- a/drivers/i2c/busses/i2c-ivc-multi.c
+++ b/drivers/i2c/busses/i2c-ivc-multi.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2017-2020 NVIDIA Corporation.  All rights reserved.
+ * Copyright (C) 2017-2021 NVIDIA Corporation.  All rights reserved.
  *
  * This software is licensed under the terms of the GNU General Public
  * License version 2, as published by the Free Software Foundation, and
@@ -229,7 +229,9 @@ static int tegra_i2c_ivc_multi_xfer(
 {
         int ret = 0;
 
-        tegra_ivc_channel_runtime_get(sensor->i2c_ivc_dev->chan);
+        ret = tegra_ivc_channel_runtime_get(sensor->i2c_ivc_dev->chan);
+        if (ret < 0)
+                goto exit;
 
         if (sensor->req_len == CAMRTC_I2C_MULTI_HEADER_SIZE) {
                 ret = 0;