platform_device_alloc could failed and return NULL,
we should check this before call platform_device_put.

Signed-off-by: Wang YanQing <udkni...@gmail.com>
---
 drivers/video/uvesafb.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/video/uvesafb.c b/drivers/video/uvesafb.c
index 2f8f82d..230bd45 100644
--- a/drivers/video/uvesafb.c
+++ b/drivers/video/uvesafb.c
@@ -1975,7 +1975,8 @@ static int __devinit uvesafb_init(void)
                        err = -ENOMEM;
 
                if (err) {
-                       platform_device_put(uvesafb_device);
+                       if (uvesafb_device)
+                               platform_device_put(uvesafb_device);
                        platform_driver_unregister(&uvesafb_driver);
                        cn_del_callback(&uvesafb_cn_id);
                        return err;
-- 
1.7.11.1.116.g8228a23
--
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