xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

kernfs: update comment about kernfs_path() return value

Browse Source 
Now it returns the length of the full path or error code.

Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Fixes: 3abb1d90f5 ("kernfs: make kernfs_path*() behave in the style of strlcpy()")
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Konstantin Khlebnikov
2018-08-13 09:52:09 +03:00
committed by Greg Kroah-Hartman
parent 7876320f88
commit 8f5be0ec23
1 changed files with 5 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
include/linux/kernfs.h
View File

@@ -477,10 +477,11 @@ static inline void kernfs_init(void) { }
* @buf: buffer to copy @kn's name into * @buf: buffer to copy @kn's name into
* @buflen: size of @buf * @buflen: size of @buf
* *
* Builds and returns the full path of @kn in @buf of @buflen bytes. The * If @kn is NULL result will be "(null)".
* path is built from the end of @buf so the returned pointer usually *
* doesn't match @buf. If @buf isn't long enough, @buf is nul terminated * Returns the length of the full path. If the full length is equal to or
* and %NULL is returned. * greater than @buflen, @buf contains the truncated path with the trailing
* '\0'. On error, -errno is returned.
*/ */
static inline int kernfs_path(struct kernfs_node *kn, char *buf, size_t buflen) static inline int kernfs_path(struct kernfs_node *kn, char *buf, size_t buflen)
{ {