MPILIB: Add a missing ENOMEM check

Add a missing ENOMEM check.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Mimi Zohar <zohar@us.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>

diff --git a/lib/mpi/mpicoder.c b/lib/mpi/mpicoder.c
index fe84bb9..716802b 100644 (file)
--- 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];