evie/android_kernel_oneplus_msm8998
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msm: sensor: Add mutex lock during ois power down operations

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Protecting operations performed during ois powerdown
from race condition by adding mutex locks.

CRs-Fixed: 2081806
Change-Id: I8a918dc306e639d50a896c8d77f8eb7a72fcb195
Signed-off-by: Rahul Sharma <sharah@codeaurora.org>
This commit is contained in:
Rahul Sharma 2017-08-21 19:27:01 +05:30 • committed by Gerrit - the friendly Code Review server
parent 2d7191e18b
commit d16420b459
1 changed files with 2 additions and 0 deletions
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2
drivers/media/platform/msm/ais/sensor/ois/msm_ois.c
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@ -623,11 +623,13 @@ static long msm_ois_subdev_ioctl(struct v4l2_subdev *sd,
pr_err("o_ctrl->i2c_client.i2c_func_tbl NULL\n");
return -EINVAL;
}
mutex_lock(o_ctrl->ois_mutex);
rc = msm_ois_power_down(o_ctrl);
if (rc < 0) {
pr_err("%s:%d OIS Power down failed\n",
__func__, __LINE__);
}
mutex_unlock(o_ctrl->ois_mutex);
return msm_ois_close(sd, NULL);
default:
return -ENOIOCTLCMD;