drm/nouveau: do not leak in nv20_graph_create

If we return due to an unknown chipset in
drivers/gpu/drm/nouveau/nv20_graph.c:nv20_graph_create() we'll leak the
memory allocated to 'pgraph'.

This patch should fix the leak.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Reviewed-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nv20_graph.c b/drivers/gpu/drm/nouveau/nv20_graph.c
index affc7d7dd029..f8736270f62f 100644
--- a/drivers/gpu/drm/nouveau/nv20_graph.c
+++ b/drivers/gpu/drm/nouveau/nv20_graph.c
@@ -753,6 +753,7 @@ nv20_graph_create(struct drm_device *dev)
                         break;
                 default:
                         NV_ERROR(dev, "PGRAPH: unknown chipset\n");
+                        kfree(pgraph);
                         return 0;
                 }
         } else {
@@ -774,6 +775,7 @@ nv20_graph_create(struct drm_device *dev)
                         break;
                 default:
                         NV_ERROR(dev, "PGRAPH: unknown chipset\n");
+                        kfree(pgraph);
                         return 0;
                 }
         }