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[media] mem2mem_testdev: unlock and return error code properly
We recently added locking to this function, but there was an error path which accidentally returned holding a lock. Also we returned zero on failure on some paths instead of the error code. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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@ -911,10 +911,9 @@ static int m2mtest_open(struct file *file)
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v4l2_ctrl_new_custom(hdl, &m2mtest_ctrl_trans_time_msec, NULL);
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v4l2_ctrl_new_custom(hdl, &m2mtest_ctrl_trans_num_bufs, NULL);
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if (hdl->error) {
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int err = hdl->error;
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rc = hdl->error;
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v4l2_ctrl_handler_free(hdl);
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return err;
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goto open_unlock;
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}
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ctx->fh.ctrl_handler = hdl;
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v4l2_ctrl_handler_setup(hdl);
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@ -946,7 +945,7 @@ static int m2mtest_open(struct file *file)
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open_unlock:
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mutex_unlock(&dev->dev_mutex);
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return 0;
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return rc;
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}
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static int m2mtest_release(struct file *file)
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