diff options
| author | Varun Prakash <varun@chelsio.com> | 2016-12-07 21:06:45 +0530 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-12-14 15:11:17 -0500 |
| commit | 1fe1fdb04b92f54b58eb8b71d2f28cf73fd9801c (patch) | |
| tree | 3c21c2a8c90ac3f30e4a3b682ae0a533c861e1f1 /drivers/scsi | |
| parent | 44830d8fd28a729729d14bb160341a6170631eb7 (diff) | |
| download | linux-1fe1fdb04b92f54b58eb8b71d2f28cf73fd9801c.tar.bz2 | |
scsi: cxgb4i: libcxgbi: add missing module_put()
Add module_put() in cxgbi_sock_act_open_req_arp_failure() to release
module reference in case of arp failure, also check return value of
try_module_get() before posting active open hw cmd.
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/cxgbi/cxgb4i/cxgb4i.c | 11 | ||||
| -rw-r--r-- | drivers/scsi/cxgbi/libcxgbi.c | 3 | ||||
| -rw-r--r-- | drivers/scsi/cxgbi/libcxgbi.h | 1 |
3 files changed, 12 insertions, 3 deletions
diff --git a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c index 57401b58efce..9a2fdc305cf2 100644 --- a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c +++ b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c @@ -801,7 +801,7 @@ static void do_act_establish(struct cxgbi_device *cdev, struct sk_buff *skb) (&csk->saddr), (&csk->daddr), atid, tid, csk, csk->state, csk->flags, rcv_isn); - module_put(THIS_MODULE); + module_put(cdev->owner); cxgbi_sock_get(csk); csk->tid = tid; @@ -950,7 +950,7 @@ static void do_act_open_rpl(struct cxgbi_device *cdev, struct sk_buff *skb) if (is_neg_adv(status)) goto rel_skb; - module_put(THIS_MODULE); + module_put(cdev->owner); if (status && status != CPL_ERR_TCAM_FULL && status != CPL_ERR_CONN_EXIST && @@ -1713,7 +1713,11 @@ static int init_act_open(struct cxgbi_sock *csk) csk->mtu, csk->mss_idx, csk->smac_idx); /* must wait for either a act_open_rpl or act_open_establish */ - try_module_get(THIS_MODULE); + if (!try_module_get(cdev->owner)) { + pr_err("%s, try_module_get failed.\n", ndev->name); + goto rel_resource; + } + cxgbi_sock_set_state(csk, CTP_ACTIVE_OPEN); if (csk->csk_family == AF_INET) send_act_open_req(csk, skb, csk->l2t); @@ -2027,6 +2031,7 @@ static void *t4_uld_add(const struct cxgb4_lld_info *lldi) cdev->skb_tx_rsvd = CXGB4I_TX_HEADER_LEN; cdev->skb_rx_extra = sizeof(struct cpl_iscsi_hdr); cdev->itp = &cxgb4i_iscsi_transport; + cdev->owner = THIS_MODULE; cdev->pfvf = FW_VIID_PFN_G(cxgb4_port_viid(lldi->ports[0])) << FW_VIID_PFN_S; diff --git a/drivers/scsi/cxgbi/libcxgbi.c b/drivers/scsi/cxgbi/libcxgbi.c index eb4af124d5cd..9f4fde9b12e3 100644 --- a/drivers/scsi/cxgbi/libcxgbi.c +++ b/drivers/scsi/cxgbi/libcxgbi.c @@ -896,6 +896,7 @@ EXPORT_SYMBOL_GPL(cxgbi_sock_fail_act_open); void cxgbi_sock_act_open_req_arp_failure(void *handle, struct sk_buff *skb) { struct cxgbi_sock *csk = (struct cxgbi_sock *)skb->sk; + struct module *owner = csk->cdev->owner; log_debug(1 << CXGBI_DBG_SOCK, "csk 0x%p,%u,0x%lx,%u.\n", csk, (csk)->state, (csk)->flags, (csk)->tid); @@ -906,6 +907,8 @@ void cxgbi_sock_act_open_req_arp_failure(void *handle, struct sk_buff *skb) spin_unlock_bh(&csk->lock); cxgbi_sock_put(csk); __kfree_skb(skb); + + module_put(owner); } EXPORT_SYMBOL_GPL(cxgbi_sock_act_open_req_arp_failure); diff --git a/drivers/scsi/cxgbi/libcxgbi.h b/drivers/scsi/cxgbi/libcxgbi.h index 85bae613d860..95ba99044c3e 100644 --- a/drivers/scsi/cxgbi/libcxgbi.h +++ b/drivers/scsi/cxgbi/libcxgbi.h @@ -468,6 +468,7 @@ struct cxgbi_device { struct pci_dev *pdev; struct dentry *debugfs_root; struct iscsi_transport *itp; + struct module *owner; unsigned int pfvf; unsigned int rx_credit_thres; |