[PATCH 3.16 039/129] mtd: docg3: Fix passing zero to 'PTR_ERR' warning in doc_probe_device

[Ben Hutchings]

3.16.70-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: YueHaibing <yuehaibing@xxxxxxxxxx>

commit 32937a82f36c7bbe08db4052de94bc7ade4e3c51 upstream.

Fix a static code checker warning:
drivers/mtd/devices/docg3.c:1875
 doc_probe_device() warn: passing zero to 'ERR_PTR'

Fixes: ae9d4934b2d7 ("mtd: docg3: add multiple floor support")
Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
Acked-by: Robert Jarzmik <robert.jarzmik@xxxxxxx>
Signed-off-by: Boris Brezillon <bbrezillon@xxxxxxxxxx>
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
 drivers/mtd/devices/docg3.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/mtd/devices/docg3.c
+++ b/drivers/mtd/devices/docg3.c
@@ -1939,7 +1939,7 @@ nomem3:
 nomem2:
 	kfree(docg3);
 nomem1:
-	return ERR_PTR(ret);
+	return ret ? ERR_PTR(ret) : NULL;
 }
 
 /**