diff options
| author | Michael Chan <mchan@broadcom.com> | 2010-06-01 15:05:36 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-03-21 12:45:41 -0700 |
| commit | 060049e494a4f234002941aa2403d849ca8c883c (patch) | |
| tree | 45403e280556139850999f610cef1e19cc0464c1 | |
| parent | 54142c959f88de9f41e637f39306085b8d7defcc (diff) | |
bnx2: Fix hang during rmmod bnx2.
commit f048fa9c8686119c3858a463cab6121dced7c0bf upstream.
The regression is caused by:
commit 4327ba435a56ada13eedf3eb332e583c7a0586a9
bnx2: Fix netpoll crash.
If ->open() and ->close() are called multiple times, the same napi structs
will be added to dev->napi_list multiple times, corrupting the dev->napi_list.
This causes free_netdev() to hang during rmmod.
We fix this by calling netif_napi_del() during ->close().
Also, bnx2_init_napi() must not be in the __devinit section since it is
called by ->open().
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/net/bnx2.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c index 1d2db7b5d55..972c98f0a6f 100644 --- a/drivers/net/bnx2.c +++ b/drivers/net/bnx2.c @@ -248,6 +248,7 @@ static const struct flash_spec flash_5709 = { MODULE_DEVICE_TABLE(pci, bnx2_pci_tbl); static void bnx2_init_napi(struct bnx2 *bp); +static void bnx2_del_napi(struct bnx2 *bp); static inline u32 bnx2_tx_avail(struct bnx2 *bp, struct bnx2_tx_ring_info *txr) { @@ -6278,6 +6279,7 @@ open_err: bnx2_free_skbs(bp); bnx2_free_irq(bp); bnx2_free_mem(bp); + bnx2_del_napi(bp); return rc; } @@ -6539,6 +6541,7 @@ bnx2_close(struct net_device *dev) bnx2_free_irq(bp); bnx2_free_skbs(bp); bnx2_free_mem(bp); + bnx2_del_napi(bp); bp->link_up = 0; netif_carrier_off(bp->dev); bnx2_set_power_state(bp, PCI_D3hot); @@ -8203,7 +8206,16 @@ bnx2_bus_string(struct bnx2 *bp, char *str) return str; } -static void __devinit +static void +bnx2_del_napi(struct bnx2 *bp) +{ + int i; + + for (i = 0; i < bp->irq_nvecs; i++) + netif_napi_del(&bp->bnx2_napi[i].napi); +} + +static void bnx2_init_napi(struct bnx2 *bp) { int i; |