1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index a112e49e946f..354199011246 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -175,7 +175,7 @@ static ssize_t sd_store_cache_type(struct class_device *cdev, const char *buf,
                  * it's not worth the risk */
                 return -EINVAL;
 
-        for (i = 0; i < sizeof(sd_cache_types)/sizeof(sd_cache_types[0]); i++) {
+        for (i = 0; i < ARRAY_SIZE(sd_cache_types); i++) {
                 const int len = strlen(sd_cache_types[i]);
                 if (strncmp(sd_cache_types[i], buf, len) == 0 &&
                     buf[len] == '\n') {