msm: camera: Undo pm_qos request upon error

If anything after msm_pm_qos_update_request(CAMERA_DISABLE_PC_LATENCY)
fails, the pm_qos request won't be undone and will waste power. Make
sure it gets unset in the error path to fix this.

Signed-off-by: Sultan Alsawaf <sultan@kerneltoast.com>

Author: kerneltoast

drivers/media/platform/msm/camera_v2/camera/camera.c

@@ -726,6 +726,7 @@ static int camera_v4l2_open(struct file *filep)
 command_ack_q_fail:
 	msm_destroy_session(pvdev->vdev->num);
 session_fail:
+	msm_pm_qos_update_request(CAMERA_ENABLE_PC_LATENCY);
 	pm_relax(&pvdev->vdev->dev);
 stream_fail:
 	camera_v4l2_vb2_q_release(filep);