diff --git a/drivers/watchdog/iop_wdt.c b/drivers/watchdog/iop_wdt.c
index 0c90596..aef9478 100644
--- a/drivers/watchdog/iop_wdt.c
+++ b/drivers/watchdog/iop_wdt.c
@@ -139,7 +139,7 @@
 
 	switch (cmd) {
 	case WDIOC_GETSUPPORT:
-		if (copy_to_user(argp, &ident, sizeof ident))
+		if (copy_to_user(argp, &ident, sizeof(ident)))
 			ret = -EFAULT;
 		else
 			ret = 0;
diff --git a/drivers/watchdog/rm9k_wdt.c b/drivers/watchdog/rm9k_wdt.c
index 2e44426..bb66958 100644
--- a/drivers/watchdog/rm9k_wdt.c
+++ b/drivers/watchdog/rm9k_wdt.c
@@ -340,7 +340,7 @@
 					const char *name, unsigned int type)
 {
 	char buf[80];
-	if (snprintf(buf, sizeof buf, "%s_0", name) >= sizeof buf)
+	if (snprintf(buf, sizeof(buf), "%s_0", name) >= sizeof(buf))
 		return NULL;
 	return platform_get_resource_byname(pdv, type, buf);
 }
diff --git a/drivers/watchdog/sc1200wdt.c b/drivers/watchdog/sc1200wdt.c
index b5e19c1..c01daca 100644
--- a/drivers/watchdog/sc1200wdt.c
+++ b/drivers/watchdog/sc1200wdt.c
@@ -197,7 +197,7 @@
 
 	switch (cmd) {
 	case WDIOC_GETSUPPORT:
-		if (copy_to_user(argp, &ident, sizeof ident))
+		if (copy_to_user(argp, &ident, sizeof(ident)))
 			return -EFAULT;
 		return 0;