From 3092e216b75397f09611a6d409476e5d7e8a75c2 Mon Sep 17 00:00:00 2001 From: Kangjie Lu Date: Tue, 25 Dec 2018 20:55:37 -0600 Subject: [PATCH] net: (cpts) fix a missing check of clk_prepare [ 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 Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- 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 e7b76f6b4f67..7d1281d81248 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