drm: i915: use ARRAY_SIZE

Change sizeof(x) / sizeof(*x) to ARRAY_SIZE(x).

Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 76993ac..03c231b 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -392,13 +392,13 @@
 		DRM_LOG_KMS("%02X ", ((u8 *)args)[i]);
 	for (; i < 8; i++)
 		DRM_LOG_KMS("   ");
-	for (i = 0; i < sizeof(sdvo_cmd_names) / sizeof(sdvo_cmd_names[0]); i++) {
+	for (i = 0; i < ARRAY_SIZE(sdvo_cmd_names); i++) {
 		if (cmd == sdvo_cmd_names[i].cmd) {
 			DRM_LOG_KMS("(%s)", sdvo_cmd_names[i].name);
 			break;
 		}
 	}
-	if (i == sizeof(sdvo_cmd_names)/ sizeof(sdvo_cmd_names[0]))
+	if (i == ARRAY_SIZE(sdvo_cmd_names))
 		DRM_LOG_KMS("(%02X)", cmd);
 	DRM_LOG_KMS("\n");
 }