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| author | Christophe Jaillet <christophe.jaillet@wanadoo.fr> | 2017-08-27 08:30:34 +0200 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2017-08-30 07:23:44 -0700 |
| commit | ed36b4dba54a421ce5551638f6a9790b2c2116b1 (patch) | |
| tree | ba708389814aa662c54bae7d5cdbe75c2c6f200e /drivers/nvdimm/btt.c | |
| parent | 02881768695da29772f6f9e0d857a8637c6b0e90 (diff) | |
| download | lwn-ed36b4dba54a421ce5551638f6a9790b2c2116b1.tar.gz lwn-ed36b4dba54a421ce5551638f6a9790b2c2116b1.zip | |
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.c | 2 |
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 |