[PATCH 1/6] lightnvm: pblk: check for failed mempool alloc.

[Javier González]

Check for failed mempool allocations and act accordingly.

Signed-off-by: Javier González <jav...@cnexlabs.com>
Signed-off-by: Matias Bjørling <mat...@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 81501644fb15..acb07bbcb416 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