diff options
| author |   Rasesh Mody <rmody@brocade.com> | 2013-12-17 17:07:39 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2013-12-18 00:30:34 -0500 |
| commit | f29eeb79ac993a7f1d9e1be5f8c7c3684be0721d (patch) | |
| tree | 23a257081ba5b61d8dcd0a6c86da0b81ff6e7722 /drivers/net/ethernet/brocade/bna/bnad.c | |
| parent | bna: Add NULL Check Before Dereferencing TCB (diff) | |
| download | linux-dev-f29eeb79ac993a7f1d9e1be5f8c7c3684be0721d.tar.xz linux-dev-f29eeb79ac993a7f1d9e1be5f8c7c3684be0721d.zip | |
bna: Handle the TX Setup Failures
Change details:
- When bnad_setup_tx() returns NULL, the error is NOT returned to the caller.
The caller will incorrectly assume success. So Return ENOMEM when bna_tx_create()
fails.
- If bnad_tx_msix_register() fails, call bna_tx_destroy() to free tx & to NULL
the bnad reference to tcb.
Signed-off-by: Rasesh Mody <rmody@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/brocade/bna/bnad.c')
| -rw-r--r-- | drivers/net/ethernet/brocade/bna/bnad.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/net/ethernet/brocade/bna/bnad.c b/drivers/net/ethernet/brocade/bna/bnad.c index e31937a9177d..8d6c7525a8d0 100644 --- a/drivers/net/ethernet/brocade/bna/bnad.c +++ b/drivers/net/ethernet/brocade/bna/bnad.c @@ -1999,8 +1999,10 @@ bnad_setup_tx(struct bnad *bnad, u32 tx_id) tx = bna_tx_create(&bnad->bna, bnad, tx_config, &tx_cbfn, res_info, tx_info); spin_unlock_irqrestore(&bnad->bna_lock, flags); - if (!tx) + if (!tx) { + err = -ENOMEM; goto err_return; + } tx_info->tx = tx; INIT_DELAYED_WORK(&tx_info->tx_cleanup_work, @@ -2011,7 +2013,7 @@ bnad_setup_tx(struct bnad *bnad, u32 tx_id) err = bnad_tx_msix_register(bnad, tx_info, tx_id, bnad->num_txq_per_tx); if (err) - goto err_return; + goto cleanup_tx; } spin_lock_irqsave(&bnad->bna_lock, flags); @@ -2020,6 +2022,12 @@ bnad_setup_tx(struct bnad *bnad, u32 tx_id) return 0; +cleanup_tx: + spin_lock_irqsave(&bnad->bna_lock, flags); + bna_tx_destroy(tx_info->tx); + spin_unlock_irqrestore(&bnad->bna_lock, flags); + tx_info->tx = NULL; + tx_info->tx_id = 0; err_return: bnad_tx_res_free(bnad, res_info); return err; |