[PATCH AUTOSEL 5.7 074/388] scsi: cxgb3i: Fix some leaks in init_act_open()

Sasha Levin
2020-06-18T02:49:09Z

From: Dan Carpenter <dan.carpenter@oracle.com>

[ Upstream commit b6170a49c59c27a10efed26c5a2969403e69aaba ]

There wasn't any clean up done if cxgb3_alloc_atid() failed and also the
original code didn't release "csk->l2t".

Link: https://lore.kernel.org/r/20200521121221.GA247492@mwanda
Fixes: 6f7efaabefeb ("[SCSI] cxgb3i: change cxgb3i to use libcxgbi")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c | 18 ++++++++++++++----
1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/cxgbi/cxgb3i/cxgb3i.c b/drivers/scsi/cxgbi/cxgb3i/cxgb3i.c
index 524cdbcd29aa..ec7d01f6e2d5 100644
--- a/drivers/scsi/cxgbi/cxgb3i/cxgb3i.c
+++ b/drivers/scsi/cxgbi/cxgb3i/cxgb3i.c
@@ -959,6 +959,7 @@ static int init_act_open(struct cxgbi_sock *csk)
struct net_device *ndev = cdev->ports[csk->port_id];
struct cxgbi_hba *chba = cdev->hbas[csk->port_id];
struct sk_buff *skb = NULL;
+ int ret;

log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
"csk 0x%p,%u,0x%lx.\n", csk, csk->state, csk->flags);
@@ -979,16 +980,16 @@ static int init_act_open(struct cxgbi_sock *csk)
csk->atid = cxgb3_alloc_atid(t3dev, &t3_client, csk);
if (csk->atid < 0) {
pr_err("NO atid available.\n");
- return -EINVAL;
+ ret = -EINVAL;
+ goto put_sock;
}
cxgbi_sock_set_flag(csk, CTPF_HAS_ATID);
cxgbi_sock_get(csk);

skb = alloc_wr(sizeof(struct cpl_act_open_req), 0, GFP_KERNEL);
if (!skb) {
- cxgb3_free_atid(t3dev, csk->atid);
- cxgbi_sock_put(csk);
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto free_atid;
}
skb->sk = (struct sock *)csk;
set_arp_failure_handler(skb, act_open_arp_failure);
@@ -1010,6 +1011,15 @@ static int init_act_open(struct cxgbi_sock *csk)
cxgbi_sock_set_state(csk, CTP_ACTIVE_OPEN);
send_act_open_req(csk, skb, csk->l2t);
return 0;
+
+free_atid:
+ cxgb3_free_atid(t3dev, csk->atid);
+put_sock:
+ cxgbi_sock_put(csk);
+ l2t_release(t3dev, csk->l2t);
+ csk->l2t = NULL;
+
+ return ret;
}

cxgb3_cpl_handler_func cxgb3i_cpl_handlers[NUM_CPL_CMDS] = {
--
2.25.1