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lightnvm: add check after mempool allocation

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The mempool allocation might fail. Make sure to return error when it
does, instead of causing a kernel panic.

Signed-off-by: Javier Gonzalez <[email protected]>
Signed-off-by: Matias Bjørling <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Javier Gonzalez 2016-01-12 07:49:17 +01:00 • committed by Jens Axboe
commit 3bfbc6adbc
1 changed files with 2 additions and 0 deletions
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2
drivers/lightnvm/rrpc.c
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@ -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) {