[PATCH] MPILIB: Add a missing ENOMEM check

[David Howells <dhowells@xxxxxxxxxx>]

Add a missing ENOMEM check.

Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
Acked-by: Mimi Zohar <zohar@xxxxxxxxxx>
---

 lib/mpi/mpicoder.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/lib/mpi/mpicoder.c b/lib/mpi/mpicoder.c
index fe84bb9..716802b 100644
--- a/lib/mpi/mpicoder.c
+++ b/lib/mpi/mpicoder.c
@@ -255,6 +255,8 @@ void *mpi_get_buffer(MPI a, unsigned *nbytes, int *sign)
 	if (!n)
 		n++;		/* avoid zero length allocation */
 	p = buffer = kmalloc(n, GFP_KERNEL);
+	if (!p)
+		return NULL;
 
 	for (i = a->nlimbs - 1; i >= 0; i--) {
 		alimb = a->d[i];

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