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atomisp/imx: Fix locking bug on error path

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This was reported by Dan Carpenter. When we error with an IMX 227 we don't release
the lock and the sensor would then hang.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alan Cox 2017-03-20 14:40:06 +00:00 • committed by Greg Kroah-Hartman
commit 9bc30b3a79
1 changed files with 3 additions and 1 deletions
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4
drivers/staging/media/atomisp/i2c/imx/imx.c
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@ -454,8 +454,10 @@ static int imx_set_exposure_gain(struct v4l2_subdev *sd, u16 coarse_itg,
if (dev->sensor_id == IMX227_ID) {
ret = imx_write_reg_array(client, imx_param_hold);
if (ret)
if (ret) {
mutex_unlock(&dev->input_lock);
return ret;
}
}
/* For imx175, setting gain must be delayed by one */