diff --git a/sys/dev/fb/vesa.c b/sys/dev/fb/vesa.c
index ee3409dfa755..e1cca3a70725 100644
--- a/sys/dev/fb/vesa.c
+++ b/sys/dev/fb/vesa.c
@@ -1698,12 +1698,12 @@ get_palette(video_adapter_t *adp, int base, int count,
 	b = g + count;
 	error = vesa_bios_save_palette2(base, count, r, g, b, bits);
 	if (error == 0) {
-		copyout(r, red, count);
-		copyout(g, green, count);
-		copyout(b, blue, count);
+		(void)copyout(r, red, count);
+		(void)copyout(g, green, count);
+		(void)copyout(b, blue, count);
 		if (trans != NULL) {
 			bzero(r, count);
-			copyout(r, trans, count);
+			(void)copyout(r, trans, count);
 		}
 	}
 	free(r, M_DEVBUF);
@@ -1729,12 +1729,12 @@ set_palette(video_adapter_t *adp, int base, int count,
 		return (1);
 
 	bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 8 : 6;
-	r = malloc(count * 3, M_DEVBUF, M_WAITOK);
+	r = malloc(count * 3, M_DEVBUF, M_WAITOK | M_ZERO);
 	g = r + count;
 	b = g + count;
-	copyin(red, r, count);
-	copyin(green, g, count);
-	copyin(blue, b, count);
+	(void)copyin(red, r, count);
+	(void)copyin(green, g, count);
+	(void)copyin(blue, b, count);
 
 	error = vesa_bios_load_palette2(base, count, r, g, b, bits);
 	free(r, M_DEVBUF);
diff --git a/sys/dev/fb/vga.c b/sys/dev/fb/vga.c
index eb081ae533d7..9851838aa8f3 100644
--- a/sys/dev/fb/vga.c
+++ b/sys/dev/fb/vga.c
@@ -2854,6 +2854,7 @@ get_palette(video_adapter_t *adp, int base, int count,
     u_char *r;
     u_char *g;
     u_char *b;
+    int error;
 
     if (count < 0 || base < 0 || count > 256 || base > 256 ||
 	base + count > 256)
@@ -2863,19 +2864,26 @@ get_palette(video_adapter_t *adp, int base, int count,
     g = r + count;
     b = g + count;
     if (vga_save_palette2(adp, base, count, r, g, b)) {
-	free(r, M_DEVBUF);
-	return ENODEV;
+	error = ENODEV;
+	goto out;
     }
-    copyout(r, red, count);
-    copyout(g, green, count);
-    copyout(b, blue, count);
+    error = copyout(r, red, count);
+    if (error != 0)
+	goto out;
+    error = copyout(g, green, count);
+    if (error != 0)
+	goto out;
+    error = copyout(b, blue, count);
+    if (error != 0)
+	goto out;
     if (trans != NULL) {
 	bzero(r, count);
-	copyout(r, trans, count);
+	error = copyout(r, trans, count);
     }
+out:
     free(r, M_DEVBUF);
 
-    return 0;
+    return error;
 }
 
 static int