| From | Sasha Levin <> | Subject | [PATCH AUTOSEL 4.14 085/127] net: (cpts) fix a missing check of clk_prepare | Date | Fri, 22 Nov 2019 00:55:03 -0500 |
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From: Kangjie Lu <kjlu@umn.edu>
[ Upstream commit 2d822f2dbab7f4c820f72eb8570aacf3f35855bd ]
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> --- drivers/net/ethernet/ti/cpts.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/ti/cpts.c b/drivers/net/ethernet/ti/cpts.c index e7b76f6b4f67e..7d1281d812480 100644 --- a/drivers/net/ethernet/ti/cpts.c +++ b/drivers/net/ethernet/ti/cpts.c @@ -567,7 +567,9 @@ struct cpts *cpts_create(struct device *dev, void __iomem *regs, return ERR_PTR(PTR_ERR(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); -- 2.20.1
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