Re: [PATCH][V2] net/ethoc: fix null dereference on error exit path

From: Max Filippov
Date: Wed Jun 01 2016 - 17:25:53 EST


On Wed, Jun 01, 2016 at 02:16:50PM +0100, Colin King wrote:
> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>
> priv is assigned to NULL however some of the early error exit paths to
> label 'free' dereference priv, causing a null pointer dereference.
>
> Move the label 'free' to just the free_netdev statement, and add a new
> exit path 'free2' for the error cases were clk_disable_unprepare needs
> calling before the final free.
>
> Fixes issue found by CoverityScan, CID#113260
>
> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> ---
> drivers/net/ethernet/ethoc.c | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)

Reviewed-by: Max Filippov <jcmvbkbc@xxxxxxxxx>

--
Thanks.
-- Max