From 3bfbc6adbc5031e8a5907baa5beb27b41637742a Mon Sep 17 00:00:00 2001 From: Javier Gonzalez Date: Tue, 12 Jan 2016 07:49:17 +0100 Subject: lightnvm: add check after mempool allocation MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The mempool allocation might fail. Make sure to return error when it does, instead of causing a kernel panic. Signed-off-by: Javier Gonzalez Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe --- drivers/lightnvm/rrpc.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/lightnvm') diff --git a/drivers/lightnvm/rrpc.c b/drivers/lightnvm/rrpc.c index a1e7488c1f3e..f4bc98687d7f 100644 --- a/drivers/lightnvm/rrpc.c +++ b/drivers/lightnvm/rrpc.c @@ -287,6 +287,8 @@ static int rrpc_move_valid_pages(struct rrpc *rrpc, struct rrpc_block *rblk) } page = mempool_alloc(rrpc->page_pool, GFP_NOIO); + if (!page) + return -ENOMEM; while ((slot = find_first_zero_bit(rblk->invalid_pages, nr_pgs_per_blk)) < nr_pgs_per_blk) { -- cgit v1.2.1