From: Navid Emamdoost <navid.emamdoost@gmail.com>
Date: Wed, 25 Sep 2019 18:24:02 +0000 (-0500)
Subject: nfp: flower: prevent memory leak in nfp_flower_spawn_phy_reprs
X-Git-Tag: v4.19.77~188
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=5b6c791f494d5e770dfd015390386f321b9a94da;p=platform%2Fkernel%2Flinux-rpi.git

nfp: flower: prevent memory leak in nfp_flower_spawn_phy_reprs

[ Upstream commit 8572cea1461a006bce1d06c0c4b0575869125fa4 ]

In nfp_flower_spawn_phy_reprs, in the for loop over eth_tbl if any of
intermediate allocations or initializations fail memory is leaked.
requiered releases are added.

Fixes: b94524529741 ("nfp: flower: add per repr private data for LAG offload")
Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/net/ethernet/netronome/nfp/flower/main.c b/drivers/net/ethernet/netronome/nfp/flower/main.c
index cc8ce05..22c572a 100644
--- a/drivers/net/ethernet/netronome/nfp/flower/main.c
+++ b/drivers/net/ethernet/netronome/nfp/flower/main.c
@@ -259,6 +259,7 @@ 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;
 		}
 
@@ -291,6 +292,7 @@ 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;
@@ -389,6 +391,7 @@ nfp_flower_spawn_phy_reprs(struct nfp_app *app, struct nfp_flower_priv *priv)
 		}
 		err = nfp_port_init_phy_port(app->pf, app, port, i);
 		if (err) {
+			kfree(repr_priv);
 			nfp_port_free(port);
 			nfp_repr_free(repr);
 			goto err_reprs_clean;