From fbc357df2e7728feb010148bed4eccb03a181610 Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Tue, 4 Mar 2008 14:28:43 -0800 Subject: [PATCH] ds1wm: should check for IS_ERR(clk) instead of NULL On the error condition clk_get() returns ERR_PTR(..), so checking for NULL doesn't work. ds1wm module causes a kernel oops when ds1wm clock isn't registered. This patch converts NULL check to IS_ERR(), plus uses PTR_ERR() for the return code. Signed-off-by: Anton Vorontsov Acked-by: Evgeniy Polyakov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/w1/masters/ds1wm.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/w1/masters/ds1wm.c b/drivers/w1/masters/ds1wm.c index 688e435b4d9a..78a14dacb8ec 100644 --- a/drivers/w1/masters/ds1wm.c +++ b/drivers/w1/masters/ds1wm.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include @@ -374,8 +375,8 @@ static int ds1wm_probe(struct platform_device *pdev) goto err1; ds1wm_data->clk = clk_get(&pdev->dev, "ds1wm"); - if (!ds1wm_data->clk) { - ret = -ENOENT; + if (IS_ERR(ds1wm_data->clk)) { + ret = PTR_ERR(ds1wm_data->clk); goto err2; } -- 2.20.1