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authorDan Carpenter <dan.carpenter@oracle.com>2011-12-07 13:58:26 +0200
committerJames Morris <jmorris@namei.org>2011-12-08 00:09:23 +1100
commitfe0e94c5a7e5335ba0d200e7d3e26e9f80cda4b1 (patch)
treee11c25e3cecf762931eba576c50a12372039c412 /lib/mpi
parentde353533753e048b5c4658f0a42365937527ac45 (diff)
downloadlinux-linaro-stable-fe0e94c5a7e5335ba0d200e7d3e26e9f80cda4b1.tar.gz
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>
Diffstat (limited to 'lib/mpi')
-rw-r--r--lib/mpi/mpi-mpow.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/mpi/mpi-mpow.c b/lib/mpi/mpi-mpow.c
index 4cc75933c5a7..7328d0d6c748 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;
}