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| author | Wenchao Hao <haowenchao@huawei.com> | 2020-11-30 21:41:56 +0800 |
|---|---|---|
| committer | Wenchao Hao <haowenchao@huawei.com> | 2020-12-12 11:44:24 +0800 |
| commit | be3b317705cbfdd694deae92db7f6e0458e702c0 (patch) | |
| tree | e60c684f5fa0fee4a4948c7d018b60c99e9e9946 /usr | |
| parent | 873fb12261b8dfa2d4512ce28ad9bc8f48efd66d (diff) | |
| download | open-iscsi-be3b317705cbfdd694deae92db7f6e0458e702c0.tar.gz | |
sysfs: Verify parameter of sysfs_device_get()
In sysfs_device_get() we should firstly check whether
devpath pointer is NULL before accessing it
Signed-off-by: Wenchao Hao <haowenchao@huawei.com>
Signed-off-by: Zhiqiang Liu <liuzhiqiang26@huawei.com>
Signed-off-by: Wu Bo <wubo40@huawei.com>
Diffstat (limited to 'usr')
| -rw-r--r-- | usr/sysfs.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/usr/sysfs.c b/usr/sysfs.c index 8d37c69..7f26572 100644 --- a/usr/sysfs.c +++ b/usr/sysfs.c @@ -168,9 +168,11 @@ struct sysfs_device *sysfs_device_get(const char *devpath) int len; char *pos; + if (!devpath) + return NULL; + /* we handle only these devpathes */ - if (devpath != NULL && - strncmp(devpath, "/devices/", 9) != 0 && + if (strncmp(devpath, "/devices/", 9) != 0 && strncmp(devpath, "/subsystem/", 11) != 0 && strncmp(devpath, "/module/", 8) != 0 && strncmp(devpath, "/bus/", 5) != 0 && |