[PATCH] video: fbdev: Fix refcount leak bug in valkyriefb.c

[Liang He]

In valkyriefb_init(), of_find_node_by_name() will return a node pointer
with refcount incremented. We should use of_node_put() in fail path or
when it is not used anymore.

Signed-off-by: Liang He <win...@126.com>
---
 drivers/video/fbdev/valkyriefb.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/video/fbdev/valkyriefb.c b/drivers/video/fbdev/valkyriefb.c
index a6c9d4f26669..20d727a8069d 100644
--- a/drivers/video/fbdev/valkyriefb.c
+++ b/drivers/video/fbdev/valkyriefb.c
@@ -334,10 +334,13 @@ int __init valkyriefb_init(void)
                        return 0;
 
                if (of_address_to_resource(dp, 0, &r)) {
+                       of_node_put(dp);
                        printk(KERN_ERR "can't find address for valkyrie\n");
                        return 0;
                }
 
+               of_node_put(dp);
+
                frame_buffer_phys = r.start;
                cmap_regs_phys = r.start + 0x304000;
        }
-- 
2.25.1