[PATCH] drm/nouveau/clk: fix possible NULL pointer dereference

[Daeseok Youn]

It need to be checking NULL before dereferencing.

Signed-off-by: Daeseok Youn <daeseok.youn at gmail.com>
---
 drivers/gpu/drm/nouveau/core/subdev/clock/base.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/base.c 
b/drivers/gpu/drm/nouveau/core/subdev/clock/base.c
index dd62bae..a586d030 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/clock/base.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/clock/base.c
@@ -290,9 +290,9 @@ nouveau_pstate_new(struct nouveau_clock *clk, int idx)
                return 0;

        pstate = kzalloc(sizeof(*pstate), GFP_KERNEL);
-       cstate = &pstate->base;
        if (!pstate)
                return -ENOMEM;
+       cstate = &pstate->base;

        INIT_LIST_HEAD(&pstate->list);

-- 
1.7.4.4