diff mbox

fs: Use strchrnul in get_fs_type

Message ID 1422624373-16617-1-git-send-email-linux@rasmusvillemoes.dk (mailing list archive)
State New, archived
Headers show

Commit Message

Rasmus Villemoes Jan. 30, 2015, 1:26 p.m. UTC 
Using strchrnul yields smaller code and avoids extra strlen call.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
---
 fs/filesystems.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
diff mbox

Patch

diff --git a/fs/filesystems.c b/fs/filesystems.c
index 5797d45a78cb..d56a7bb09afa 100644
--- a/fs/filesystems.c
+++ b/fs/filesystems.c
@@ -271,14 +271,14 @@  static struct file_system_type *__get_fs_type(const char *name, int len)
 struct file_system_type *get_fs_type(const char *name)
 {
 	struct file_system_type *fs;
-	const char *dot = strchr(name, '.');
-	int len = dot ? dot - name : strlen(name);
+	const char *dot = strchrnul(name, '.');
+	int len = dot - name;
 
 	fs = __get_fs_type(name, len);
 	if (!fs && (request_module("fs-%.*s", len, name) == 0))
 		fs = __get_fs_type(name, len);
 
-	if (dot && fs && !(fs->fs_flags & FS_HAS_SUBTYPE)) {
+	if (*dot && fs && !(fs->fs_flags & FS_HAS_SUBTYPE)) {
 		put_filesystem(fs);
 		fs = NULL;
 	}