mpi/mpi-mpow: NULL dereference on allocation failure

We can't call mpi_free() on the elements if the first kzalloc() fails.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@intel.com>
Signed-off-by: James Morris <jmorris@namei.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/lib/mpi/mpi-mpow.c b/lib/mpi/mpi-mpow.c
index 4cc75933c5a..7328d0d6c74 100644
--- a/lib/mpi/mpi-mpow.c
+++ b/lib/mpi/mpi-mpow.c
@@ -73,7 +73,7 @@ int mpi_mulpowm(MPI res, MPI *basearray, MPI *exparray, MPI m)
 
         G = kzalloc((1 << k) * sizeof *G, GFP_KERNEL);
         if (!G)
-                goto nomem;
+                goto err_out;
 
         /* and calculate */
         tmp = mpi_alloc(mpi_get_nlimbs(m) + 1);
@@ -129,5 +129,6 @@ nomem:
         for (i = 0; i < (1 << k); i++)
                 mpi_free(G[i]);
         kfree(G);
+err_out:
         return rc;
 }