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)

Cc: [email protected]
Acked-by: Minchan Kim <[email protected]>
Signed-off-by: Rashika Kheria <[email protected]>
---
 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 592e760..bf28d56 100644
--- a/drivers/staging/zram/zram_drv.c
+++ b/drivers/staging/zram/zram_drv.c
@@ -901,13 +901,10 @@ 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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