Commit ed36b4db authored Aug 27, 2017 by Christophe Jaillet Committed by Dan Williams Aug 30, 2017

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: 14e49454 ("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>

parent 02881768

drivers/nvdimm/btt.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -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