diff options
| -rw-r--r-- | arch/powerpc/platforms/pseries/of_helpers.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/powerpc/platforms/pseries/of_helpers.c b/arch/powerpc/platforms/pseries/of_helpers.c index 8c6b05ae1a1d..4417afef74d4 100644 --- a/arch/powerpc/platforms/pseries/of_helpers.c +++ b/arch/powerpc/platforms/pseries/of_helpers.c @@ -17,14 +17,14 @@ struct device_node *pseries_of_derive_parent(const char *path) { struct device_node *parent; char *parent_path = "/"; - size_t parent_path_len = strrchr(path, '/') - path + 1; + const char *tail = kbasename(path); /* reject if path is "/" */ if (!strcmp(path, "/")) return ERR_PTR(-EINVAL); - if (strrchr(path, '/') != path) { - parent_path = kstrndup(path, parent_path_len, GFP_KERNEL); + if (tail > path + 1) { + parent_path = kstrndup(path, tail - path, GFP_KERNEL); if (!parent_path) return ERR_PTR(-ENOMEM); } |