From: Tian Tao <tiantao6@hisilicon.com>
Date: Mon, 25 Jan 2021 08:13:01 +0000 (+0800)
Subject: zram: fix NULL check before some freeing functions is not needed
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=294ed6b9f00665acc22253044890257c5d9d18c1;p=linux.git

zram: fix NULL check before some freeing functions is not needed

fixed the below warning:
/drivers/block/zram/zram_drv.c:534:2-8: WARNING: NULL check
before some freeing functions is not needed.

Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index d6243dbc53cc5..d7018543842e0 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -530,8 +530,7 @@ static ssize_t backing_dev_store(struct device *dev,
 
 	return len;
 out:
-	if (bitmap)
-		kvfree(bitmap);
+	kvfree(bitmap);
 
 	if (bdev)
 		blkdev_put(bdev, FMODE_READ | FMODE_WRITE | FMODE_EXCL);