From b48b3a390629945f5a131b210931416cf243f58d Mon Sep 17 00:00:00 2001
From: Steven Miao <realmz6@gmail.com>
Date: Wed, 29 Jan 2014 12:25:39 +0800
Subject: [PATCH] From: Paul Walmsley <pwalmsley@nvidia.com>

blackfin: bf60x: clock: return 0 upon error from clk_round_rate()

clk_round_rate() should return 0 upon an error, rather than returning
a negative error code.  This is because clk_round_rate() is being
changed to return an unsigned return type rather than a signed type,
since some clock sources can generate rates higher than (2^31)-1 Hz.

Signed-off-by: Paul Walmsley <pwalmsley@nvidia.com>
Signed-off-by: Steven Miao <realmz6@gmail.com>
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