From e0c223ec67a98f70770eec85e625015f5af69f10 Mon Sep 17 00:00:00 2001
From: Grygorii Strashko <grygorii.strashko@ti.com>
Date: Sat, 23 Nov 2013 16:31:12 -0500
Subject: [PATCH] clk: keystone: gate: fix error handling on init

This patch fixes Keystone gate control clock driver initialization path:
1) clk_register_psc() returns error code and not a pure pointer, hence
its return value need to be checked using IS_ERR(clk) macro.

2) Mapped IO memory isn't unmapped in case of errors, hence fix it.

Cc: Mike Turquette <mturquette@linaro.org
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
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