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msm_serial: add missing iounmap() on error in msm_request_port()

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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>
This commit is contained in:
Wei Yongjun 2013-07-17 13:34:09 +08:00 committed by Greg Kroah-Hartman
parent 37e1ceb179
commit 195be84aaa
1 changed files with 3 additions and 1 deletions
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4
drivers/tty/serial/msm_serial.c
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@ -637,7 +637,7 @@ static int msm_request_port(struct uart_port *port)
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 @@ static int msm_request_port(struct uart_port *port)
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;