diff mbox series

nfp: flower: fix memory leak in nfp_flower_spawn_vnic_reprs

Message ID 20190925190512.3404-1-navid.emamdoost@gmail.com
State Accepted
Delegated to: David Miller
Headers show
Series nfp: flower: fix memory leak in nfp_flower_spawn_vnic_reprs | expand

Commit Message

Navid Emamdoost Sept. 25, 2019, 7:05 p.m. UTC
In nfp_flower_spawn_vnic_reprs in the loop if initialization or the
allocations fail memory is leaked. Appropriate releases are added.

Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
---
 drivers/net/ethernet/netronome/nfp/flower/main.c | 3 +++
 1 file changed, 3 insertions(+)

Comments

Jakub Kicinski Sept. 26, 2019, 1:22 a.m. UTC | #1
On Wed, 25 Sep 2019 14:05:09 -0500, Navid Emamdoost wrote:
> In nfp_flower_spawn_vnic_reprs in the loop if initialization or the
> allocations fail memory is leaked. Appropriate releases are added.
> 
> Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>

Fixes: b94524529741 ("nfp: flower: add per repr private data for LAG offload")

Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Markus Elfring Sept. 27, 2019, 2:06 p.m. UTC | #2
> @@ -433,6 +435,7 @@ nfp_flower_spawn_vnic_reprs(struct nfp_app *app,
>  		err = nfp_repr_init(app, repr,
>  				    port_id, port, priv->nn->dp.netdev);
>  		if (err) {
> +			kfree(repr_priv);
>  			nfp_port_free(port);
>  			nfp_repr_free(repr);
>  			goto err_reprs_clean;

How do you think about to move common exception handling code
to the end of this function implementation by using another jump target?

Regards,
Markus
David Miller Sept. 27, 2019, 6:12 p.m. UTC | #3
From: Navid Emamdoost <navid.emamdoost@gmail.com>
Date: Wed, 25 Sep 2019 14:05:09 -0500

> In nfp_flower_spawn_vnic_reprs in the loop if initialization or the
> allocations fail memory is leaked. Appropriate releases are added.
> 
> Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>

Applied.
diff mbox series

Patch

diff --git a/drivers/net/ethernet/netronome/nfp/flower/main.c b/drivers/net/ethernet/netronome/nfp/flower/main.c
index 7a20447cca19..c20677059cb2 100644
--- a/drivers/net/ethernet/netronome/nfp/flower/main.c
+++ b/drivers/net/ethernet/netronome/nfp/flower/main.c
@@ -400,6 +400,7 @@  nfp_flower_spawn_vnic_reprs(struct nfp_app *app,
 		repr_priv = kzalloc(sizeof(*repr_priv), GFP_KERNEL);
 		if (!repr_priv) {
 			err = -ENOMEM;
+			nfp_repr_free(repr);
 			goto err_reprs_clean;
 		}
 
@@ -413,6 +414,7 @@  nfp_flower_spawn_vnic_reprs(struct nfp_app *app,
 		port = nfp_port_alloc(app, port_type, repr);
 		if (IS_ERR(port)) {
 			err = PTR_ERR(port);
+			kfree(repr_priv);
 			nfp_repr_free(repr);
 			goto err_reprs_clean;
 		}
@@ -433,6 +435,7 @@  nfp_flower_spawn_vnic_reprs(struct nfp_app *app,
 		err = nfp_repr_init(app, repr,
 				    port_id, port, priv->nn->dp.netdev);
 		if (err) {
+			kfree(repr_priv);
 			nfp_port_free(port);
 			nfp_repr_free(repr);
 			goto err_reprs_clean;