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Subject[PATCH 04/18] lightnvm: pblk: check for failed mempool alloc.
Date
Check for failed mempool allocations and act accordingly.

Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <matias@cnexlabs.com>
---
drivers/lightnvm/pblk-core.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/lightnvm/pblk-core.c b/drivers/lightnvm/pblk-core.c
index e3997abdf740..11a684162a5d 100644
--- a/drivers/lightnvm/pblk-core.c
+++ b/drivers/lightnvm/pblk-core.c
@@ -165,6 +165,8 @@ struct nvm_rq *pblk_alloc_rqd(struct pblk *pblk, int rw)
}

rqd = mempool_alloc(pool, GFP_KERNEL);
+ if (!rqd)
+ return NULL;
memset(rqd, 0, rq_size);

return rqd;
@@ -1478,6 +1480,8 @@ int pblk_blk_erase_async(struct pblk *pblk, struct ppa_addr ppa)
int err;

rqd = mempool_alloc(pblk->g_rq_pool, GFP_KERNEL);
+ if (!rqd)
+ return -ENOMEM;
memset(rqd, 0, pblk_g_rq_size);

pblk_setup_e_rq(pblk, rqd, ppa);
--
2.7.4
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