diff options
| author | Anton Vorontsov <cbouatmailru@gmail.com> | 2008-03-05 01:28:43 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-03-05 03:35:12 +0300 |
| commit | fbc357df2e7728feb010148bed4eccb03a181610 (patch) | |
| tree | 4be747467720b697118ffeb3b65f8a6d363f264b /drivers/w1/masters/ds1wm.c | |
| parent | 4874cc1b5142397d585c63d84b3d6d3afff60354 (diff) | |
| download | linux-fbc357df2e7728feb010148bed4eccb03a181610.tar.xz | |
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 <cbouatmailru@gmail.com>
Acked-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/w1/masters/ds1wm.c')
| -rw-r--r-- | drivers/w1/masters/ds1wm.c | 5 |
1 files 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 <linux/pm.h> #include <linux/platform_device.h> #include <linux/clk.h> +#include <linux/err.h> #include <linux/delay.h> #include <linux/ds1wm.h> @@ -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; } |