Commit 823f4e53 authored Sep 25, 2018 by Wei Yongjun Committed by Greg Kroah-Hartman Oct 02, 2018

serial: uartps: Fix missing unlock on error in cdns_get_id()



Add the missing unlock before return from function cdns_get_id()
in the error handling case.

Fixes: ae1cca3f ("serial: uartps: Change uart ID port allocation")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 377fedd1

drivers/tty/serial/xilinx_uartps.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -1394,8 +1394,10 @@ static int cdns_get_id(struct platform_device *pdev)
		if (!alias_bitmap_initialized) {
		ret = of_alias_get_alias_list(cdns_uart_of_match, "serial",
		alias_bitmap, MAX_UART_INSTANCES);
		if (ret)
		if (ret) {
		mutex_unlock(&bitmap_lock);
		return ret;
		}

		alias_bitmap_initialized++;
		}

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