diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 715cc57cc66a..e69201d8094e 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -1995,7 +1995,7 @@ static int do_proc_dointvec_conv(bool *negp, unsigned long *lvalp,
 		int val = *valp;
 		if (val < 0) {
 			*negp = true;
-			*lvalp = (unsigned long)-val;
+			*lvalp = -(unsigned long)val;
 		} else {
 			*negp = false;
 			*lvalp = (unsigned long)val;
@@ -2201,7 +2201,7 @@ static int do_proc_dointvec_minmax_conv(bool *negp, unsigned long *lvalp,
 		int val = *valp;
 		if (val < 0) {
 			*negp = true;
-			*lvalp = (unsigned long)-val;
+			*lvalp = -(unsigned long)val;
 		} else {
 			*negp = false;
 			*lvalp = (unsigned long)val;
@@ -2436,7 +2436,7 @@ static int do_proc_dointvec_jiffies_conv(bool *negp, unsigned long *lvalp,
 		unsigned long lval;
 		if (val < 0) {
 			*negp = true;
-			lval = (unsigned long)-val;
+			lval = -(unsigned long)val;
 		} else {
 			*negp = false;
 			lval = (unsigned long)val;
@@ -2459,7 +2459,7 @@ static int do_proc_dointvec_userhz_jiffies_conv(bool *negp, unsigned long *lvalp
 		unsigned long lval;
 		if (val < 0) {
 			*negp = true;
-			lval = (unsigned long)-val;
+			lval = -(unsigned long)val;
 		} else {
 			*negp = false;
 			lval = (unsigned long)val;
@@ -2484,7 +2484,7 @@ static int do_proc_dointvec_ms_jiffies_conv(bool *negp, unsigned long *lvalp,
 		unsigned long lval;
 		if (val < 0) {
 			*negp = true;
-			lval = (unsigned long)-val;
+			lval = -(unsigned long)val;
 		} else {
 			*negp = false;
 			lval = (unsigned long)val;