From: Alexey Dobriyan <adobriyan@xxxxxxxxx> Subject: lib: memscan() fixlet Generic version doesn't trucate second argument to char. Older brother memchr() does as do s390, sparc and i386 assembly versions. Fortunately, no code passes c >= 256. Link: https://lkml.kernel.org/r/YLv4cCf0t5UPdyK+@localhost.localdomain Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- lib/string.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/lib/string.c~lib-memscan-fixlet +++ a/lib/string.c @@ -977,7 +977,7 @@ void *memscan(void *addr, int c, size_t unsigned char *p = addr; while (size) { - if (*p == c) + if (*p == (unsigned char)c) return (void *)p; p++; size--; _
