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authorChristophe Jaillet <christophe.jaillet@wanadoo.fr>2017-08-27 08:30:34 +0200
committerDan Williams <dan.j.williams@intel.com>2017-08-30 07:23:44 -0700
commited36b4dba54a421ce5551638f6a9790b2c2116b1 (patch)
treeba708389814aa662c54bae7d5cdbe75c2c6f200e /drivers/nvdimm/btt.c
parent02881768695da29772f6f9e0d857a8637c6b0e90 (diff)
libnvdimm, btt: check memory allocation failure
Check memory allocation failures and return -ENOMEM in such cases, as already done few lines below for another memory allocation. This avoids NULL pointers dereference. Cc: <stable@vger.kernel.org> Fixes: 14e494542636 ("libnvdimm, btt: BTT updates for UEFI 2.7 format") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Vishal Verma <vishal.l.verma@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm/btt.c')
-rw-r--r--drivers/nvdimm/btt.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/nvdimm/btt.c b/drivers/nvdimm/btt.c
index 14323faf8bd9..7ec6393b6ba1 100644
--- a/drivers/nvdimm/btt.c
+++ b/drivers/nvdimm/btt.c
@@ -1429,6 +1429,8 @@ int nvdimm_namespace_attach_btt(struct nd_namespace_common *ndns)
}
btt_sb = devm_kzalloc(&nd_btt->dev, sizeof(*btt_sb), GFP_KERNEL);
+ if (!btt_sb)
+ return -ENOMEM;
/*
* If this returns < 0, that is ok as it just means there wasn't

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