diff options
| -rw-r--r-- | src/libudev-util.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/libudev-util.c b/src/libudev-util.c index a795329f7c..7e345f0fb6 100644 --- a/src/libudev-util.c +++ b/src/libudev-util.c @@ -56,7 +56,7 @@ int util_resolve_sys_link(struct udev *udev, char *syspath, size_t size) ssize_t len; int i; int back; - char *base; + char *base = NULL; len = readlink(syspath, link_target, sizeof(link_target)); if (len <= 0 || len == (ssize_t)sizeof(link_target)) @@ -70,9 +70,11 @@ int util_resolve_sys_link(struct udev *udev, char *syspath, size_t size) for (i = 0; i <= back; i++) { base = strrchr(syspath, '/'); if (base == NULL) - return -1; + return -EINVAL; base[0] = '\0'; } + if (base == NULL) + return -EINVAL; dbg(udev, "after moving back '%s'\n", syspath); util_strscpyl(base, size - (base - syspath), "/", &link_target[back * 3], NULL); return 0; |