Re: [PATCH] ntb_transport: use put_device() instead of kfree()

From: Logan Gunthorpe
Date: Fri Mar 09 2018 - 11:47:09 EST


Looks correct to me. Thanks!

Reviewed-by: Logan Gunthorpe <logang@xxxxxxxxxxxx>

On 09/03/18 03:33 AM, Arvind Yadav wrote:
Never directly free @dev after calling device_register(), even
if it returned an error! Always use put_device() to give up the
reference initialized.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@xxxxxxxxx>
---
drivers/ntb/ntb_transport.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c
index 9878c48..8182a3a 100644
--- a/drivers/ntb/ntb_transport.c
+++ b/drivers/ntb/ntb_transport.c
@@ -393,7 +393,7 @@ int ntb_transport_register_client_dev(char *device_name)
rc = device_register(dev);
if (rc) {
- kfree(client_dev);
+ put_device(dev);
goto err;
}