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-rw-r--r--drivers/tty/serial/xilinx_uartps.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index f77200a0f461..0e3dae461f71 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -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++;
}