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| author | Christophe Jaillet <christophe.jaillet@wanadoo.fr> | 2017-08-27 09:30:34 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-09-20 09:27:48 +0300 |
| commit | d167685f48672e738c11e862c528837d35d92ff3 (patch) | |
| tree | 37f2473956f78f90f3ad39aff62ea45710d19e4a | |
| parent | a6cd7f34d798814844c3f5a27f48dbf770773759 (diff) | |
| download | linux-d167685f48672e738c11e862c528837d35d92ff3.tar.xz | |
libnvdimm, btt: check memory allocation failure
commit ed36b4dba54a421ce5551638f6a9790b2c2116b1 upstream.
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.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -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 |