9p v9fs_parse_options: replace simple_strtoul with kstrtouint

This is also a checkpatch change, but this one might have more implications
so keeping this separate

Link: http://lkml.kernel.org/r/20211102134608.1588018-4-dominique.martinet@atmark-techno.com
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>

diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c
index 0973d7a3536b03b3d12396f2e1bda96625809270..457d9ff584ec170dde663f5687fb9af02896dd4a 100644 (file)
--- a/fs/9p/v9fs.c
+++ b/fs/9p/v9fs.c
@@ -164,7 +164,7 @@ static int v9fs_parse_options(struct v9fs_session_info *v9ses, char *opts)
        substring_t args[MAX_OPT_ARGS];
        char *p;
        int option = 0;
-       char *s, *e;
+       char *s;
        int ret = 0;
 
        /* setup defaults */
@@ -319,12 +319,13 @@ static int v9fs_parse_options(struct v9fs_session_info *v9ses, char *opts)
                                v9ses->flags |= V9FS_ACCESS_CLIENT;
                        } else {
                                uid_t uid;
+
                                v9ses->flags |= V9FS_ACCESS_SINGLE;
-                               uid = simple_strtoul(s, &e, 10);
-                               if (*e != '\0') {
-                                       ret = -EINVAL;
-                                       pr_info("Unknown access argument %s\n",
-                                               s);
+                               r = kstrtouint(s, 10, &uid);
+                               if (r) {
+                                       ret = r;
+                                       pr_info("Unknown access argument %s: %d\n",
+                                               s, r);
                                        kfree(s);
                                        continue;
                                }