Testing for char equiality works just fine for each signedness. Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx> --- fs/namei.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/fs/namei.c +++ b/fs/namei.c @@ -2613,7 +2613,7 @@ static int lookup_one_common(struct user_namespace *mnt_userns, } while (len--) { - unsigned int c = *(const unsigned char *)name++; + char c = *name++; if (c == '/' || c == '\0') return -EACCES; }