From: Julia Lawall <julia.law...@lip6.fr>

Of_node_put supports NULL as its argument, so the initial test is not
necessary.

Suggested by Uwe Kleine-König.

The semantic patch that fixes this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression e;
@@

-if (e)
   of_node_put(e);
// </smpl>

Signed-off-by: Julia Lawall <julia.law...@lip6.fr>

---
 drivers/staging/imx-drm/imx-drm-core.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/imx-drm/imx-drm-core.c 
b/drivers/staging/imx-drm/imx-drm-core.c
index 6b22106..1852300 100644
--- a/drivers/staging/imx-drm/imx-drm-core.c
+++ b/drivers/staging/imx-drm/imx-drm-core.c
@@ -471,8 +471,7 @@ int imx_drm_encoder_parse_of(struct drm_device *drm,
                crtc_mask |= mask;
        }
 
-       if (ep)
-               of_node_put(ep);
+       of_node_put(ep);
        if (i == 0)
                return -ENOENT;
 

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