From: Dmitry Kasatkin <dmitry.kasatkin@intel.com>
Date: Thu, 26 Jan 2012 17:13:17 +0000 (+0200)
Subject: lib/mpi: added missing NULL check
X-Git-Tag: firefly_0821_release~3680^2~3596^2~12
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=c70c471c585a3fc1a10c792d5121b3803c83dde0;p=firefly-linux-kernel-4.4.55.git

lib/mpi: added missing NULL check

Added missing NULL check after mpi_alloc().

Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@intel.com>
Reviewed-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
---

diff --git a/lib/mpi/mpicoder.c b/lib/mpi/mpicoder.c
index 716802b774ea..6116fc4990da 100644
--- a/lib/mpi/mpicoder.c
+++ b/lib/mpi/mpicoder.c
@@ -79,7 +79,8 @@ MPI do_encode_md(const void *sha_buffer, unsigned nbits)
 	}
 
 	a = mpi_alloc((nframe + BYTES_PER_MPI_LIMB - 1) / BYTES_PER_MPI_LIMB);
-	mpi_set_buffer(a, frame, nframe, 0);
+	if (a)
+		mpi_set_buffer(a, frame, nframe, 0);
 	kfree(frame);
 
 	return a;