From: Tero Kristo <t-kristo@ti.com>
Date: Mon, 23 Feb 2015 19:06:08 +0000 (+0200)
Subject: clk: ti: fix ti_clk_get_reg_addr error handling
X-Git-Tag: omap-for-v4.1/prcm-dts^2~34
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c807dbedb5e5;p=pandora-kernel.git

clk: ti: fix ti_clk_get_reg_addr error handling

There is a case where NULL can be a valid return value for
ti_clk_get_reg_addr, specifically the case where both the provider index
and register offsets are zero. In this case, the current error checking
against a NULL pointer will fail. Thus, change the API to return a
ERR_PTR value in an error case, and change all the users of this API to
check against IS_ERR instead.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Michael Turquette <mturquette@linaro.org>
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