From: Masahiro Yamada <yamada.masahiro@socionext.com>
Date: Mon, 25 May 2015 06:03:32 +0000 (+0900)
Subject: serial: of_serial: check the return value of clk_prepare_enable()
X-Git-Tag: omap-for-v4.2/wakeirq-drivers-v2^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6f0c3091e73df7ad1393c3400d168b9777b4a63c;p=pandora-kernel.git

serial: of_serial: check the return value of clk_prepare_enable()

The function clk_prepare_enable() may fail, and in that case it
does not make sense to proceed.  Let's check its return code and
error out if it is a negative value.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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