diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 43b68fdd95d6..aebc710f0d6a 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -2546,6 +2546,8 @@ static ssize_t recompress_store(struct device *dev,
 				mode = RECOMPRESS_HUGE;
 			if (!strcmp(val, "huge_idle"))
 				mode = RECOMPRESS_IDLE | RECOMPRESS_HUGE;
+			if (!mode)
+				return -EINVAL;
 			continue;
 		}