[PATCH v5 2/3] Staging: zram: Fix variable dereferenced before check

[Rashika Kheria]

This patch fixes the following Smatch warning in zram_drv.c-
drivers/staging/zram/zram_drv.c:899 
destroy_device() warn: variable dereferenced before check 'zram->disk' (see line 896) 

Signed-off-by: Rashika Kheria <rashika.kheria@xxxxxxxxx>
---

This revision fixes the following issues of the previous revision-
Seperating patches into Bug fix and Smatch fix

 drivers/staging/zram/zram_drv.c |    9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/zram/zram_drv.c b/drivers/staging/zram/zram_drv.c
index d640a8f..9027975 100644
--- a/drivers/staging/zram/zram_drv.c
+++ b/drivers/staging/zram/zram_drv.c
@@ -898,13 +898,10 @@ static void destroy_device(struct zram *zram)
 	sysfs_remove_group(&disk_to_dev(zram->disk)->kobj,
 			&zram_disk_attr_group);
 
-	if (zram->disk) {
-		del_gendisk(zram->disk);
-		put_disk(zram->disk);
-	}
+	del_gendisk(zram->disk);
+	put_disk(zram->disk);
 
-	if (zram->queue)
-		blk_cleanup_queue(zram->queue);
+	blk_cleanup_queue(zram->queue);
 }
 
 static int __init zram_init(void)
-- 
1.7.9.5

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