Ensure the page used for local object data is freed on error out path. Fixes: 330edc2bc059 (zram: rework writeback target selection strategy) Signed-off-by: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx> --- drivers/block/zram/zram_drv.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c index f4644c29f74e..10239aea5ce0 100644 --- a/drivers/block/zram/zram_drv.c +++ b/drivers/block/zram/zram_drv.c @@ -787,7 +787,7 @@ static ssize_t writeback_store(struct device *dev, unsigned long index = 0; struct bio bio; struct bio_vec bio_vec; - struct page *page; + struct page *page = NULL; ssize_t ret = len; int mode, err; unsigned long blk_idx = 0; @@ -929,8 +929,10 @@ static ssize_t writeback_store(struct device *dev, if (blk_idx) free_block_bdev(zram, blk_idx); - __free_page(page); + release_init_lock: + if (page) + __free_page(page); release_pp_ctl(zram, ctl); atomic_set(&zram->pp_in_progress, 0); up_read(&zram->init_lock); -- 2.48.1.502.g6dc24dfdaf-goog
