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| author | Adrian Bunk <bunk@stusta.de> | 2006-11-25 11:09:29 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2006-11-25 13:28:33 -0800 |
| commit | 17ad78e59a0334d64c3a37f964b15ab9918313c7 (patch) | |
| tree | cd437a4c78569352cbc03a53cc5bcde40859d18a /drivers/rtc/rtc-rs5c372.c | |
| parent | d728b1e69fd5829ec2ab2434381e5a268d4f684a (diff) | |
| download | linux-17ad78e59a0334d64c3a37f964b15ab9918313c7.tar.gz linux-17ad78e59a0334d64c3a37f964b15ab9918313c7.tar.bz2 linux-17ad78e59a0334d64c3a37f964b15ab9918313c7.zip | |
[PATCH] drivers/rtc/rtc-rs5c372.c: fix a NULL dereference
The correct order is: NULL check before dereference
This was a guaranteed NULL dereference with debugging enabled since
rs5c372_sysfs_show_osc() does actually pass NULL...
Spotted by the Coverity checker.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/rtc/rtc-rs5c372.c')
| -rw-r--r-- | drivers/rtc/rtc-rs5c372.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/rtc/rtc-rs5c372.c b/drivers/rtc/rtc-rs5c372.c index 2a86632580f1..a44fe4efa216 100644 --- a/drivers/rtc/rtc-rs5c372.c +++ b/drivers/rtc/rtc-rs5c372.c @@ -126,13 +126,13 @@ static int rs5c372_get_trim(struct i2c_client *client, int *osc, int *trim) return -EIO; } - dev_dbg(&client->dev, "%s: raw trim=%x\n", __FUNCTION__, *trim); - if (osc) *osc = (buf & RS5C372_TRIM_XSL) ? 32000 : 32768; - if (trim) + if (trim) { *trim = buf & RS5C372_TRIM_MASK; + dev_dbg(&client->dev, "%s: raw trim=%x\n", __FUNCTION__, *trim); + } return 0; } |