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net: (cpts) fix a missing check of clk_prepare

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[ Upstream commit 2d822f2dba ]

clk_prepare() could fail, so let's check its status, and if it fails,
return its error code upstream.

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Kangjie Lu
2018-12-25 20:55:37 -06:00
committed by Greg Kroah-Hartman
parent 48b140f563
commit 7d75191483
1 changed files with 3 additions and 1 deletions
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4
drivers/net/ethernet/ti/cpts.c
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@@ -572,7 +572,9 @@ struct cpts *cpts_create(struct device *dev, void __iomem *regs,
return ERR_CAST(cpts->refclk);
}
clk_prepare(cpts->refclk);
ret = clk_prepare(cpts->refclk);
if (ret)
return ERR_PTR(ret);
cpts->cc.read = cpts_systim_read;
cpts->cc.mask = CLOCKSOURCE_MASK(32);