Using strchrnul yields smaller code and avoids extra strlen call.

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

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;
        }
-- 
2.1.3

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