[PATCH] mm/zswap: fix variable 'entry' is uninitialized when used

[Tian Tao <tiantao6@xxxxxxxxxxxxx>]

the entry has not been initialized when it is used, so allocate PAGE_SIZE

Signed-off-by: Tian Tao <tiantao6@xxxxxxxxxxxxx>
Reported-by: kernel test robot <lkp@xxxxxxxxx>
---
 mm/zswap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/zswap.c b/mm/zswap.c
index 6e0bb61..4b7b6ad 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -944,7 +944,7 @@ static int zswap_writeback_entry(struct zpool *pool, unsigned long handle)
 
 	if (!zpool_can_sleep_mapped(pool)) {
 
-		tmp = kmalloc(entry->length, GFP_ATOMIC);
+		tmp = kmalloc(PAGE_SIZE, GFP_ATOMIC);
 		if (!tmp)
 			return -ENOMEM;
 	}
-- 
2.7.4