msm_serial: add missing iounmap() on error in msm_request_port()
Add the missing iounmap() before return from msm_request_port()
in the error handling case.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Reviewed-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c
index 2c6cfb3..0b38b28 100644
--- a/drivers/tty/serial/msm_serial.c
+++ b/drivers/tty/serial/msm_serial.c
@@ -637,7 +637,7 @@
if (!request_mem_region(gsbi_resource->start, size,
"msm_serial")) {
ret = -EBUSY;
- goto fail_release_port;
+ goto fail_release_port_membase;
}
msm_port->gsbi_base = ioremap(gsbi_resource->start, size);
@@ -651,6 +651,8 @@
fail_release_gsbi:
release_mem_region(gsbi_resource->start, size);
+fail_release_port_membase:
+ iounmap(port->membase);
fail_release_port:
release_mem_region(port->mapbase, size);
return ret;