[PATCH][net-next] nexthop: fix incorrect allocation failure on nhg->spare

From: Colin King
Date: Thu May 28 2020 - 10:51:33 EST


From: Colin Ian King <colin.king@xxxxxxxxxxxxx>

The allocation failure check for nhg->spare is currently checking
the pointer nhg rather than nhg->spare which is never false. Fix
this by checking nhg->spare instead.

Addresses-Coverity: ("Logically dead code")
Fixes: 430a049190de ("nexthop: Add support for nexthop groups")
Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
net/ipv4/nexthop.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv4/nexthop.c b/net/ipv4/nexthop.c
index ebafa5ed91ac..97423d6f2de9 100644
--- a/net/ipv4/nexthop.c
+++ b/net/ipv4/nexthop.c
@@ -1185,7 +1185,7 @@ static struct nexthop *nexthop_create_group(struct net *net,

/* spare group used for removals */
nhg->spare = nexthop_grp_alloc(num_nh);
- if (!nhg) {
+ if (!nhg->spare) {
kfree(nhg);
kfree(nh);
return NULL;
--
2.25.1