md: Convert to use int_pow()

Instead of linear approach to calculate power of 10, use generic int_pow() which does it better. Signed-off-by: Andy Shevchenko <[email protected]> Signed-off-by: Song Liu <[email protected]>
niw · Aug 7, 2019 · cf89160 · cf89160
1 parent 7cee6d4
commit cf89160
Showing 1 changed file with 1 addition and 5 deletions.
diff --git a/drivers/md/md.c b/drivers/md/md.c
@@ -3664,11 +3664,7 @@ int strict_strtoul_scaled(const char *cp, unsigned long *res, int scale)
 		return -EINVAL;
 	if (decimals < 0)
 		decimals = 0;
-	while (decimals < scale) {
-		result *= 10;
-		decimals ++;
-	}
-	*res = result;
+	*res = result * int_pow(10, scale - decimals);
 	return 0;
 }