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| author | Michael Chan <mchan@broadcom.com> | 2010-06-01 15:05:36 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-06-02 02:26:40 -0700 |
| commit | f048fa9c8686119c3858a463cab6121dced7c0bf (patch) | |
| tree | c68dd0cc095559c348c8916b6e3372b4e0610e9a /drivers/net | |
| parent | fafeeb6c80e3842c6dc19d05de09a23f23eef0d8 (diff) | |
| download | kernel_samsung_smdk4412-f048fa9c8686119c3858a463cab6121dced7c0bf.zip kernel_samsung_smdk4412-f048fa9c8686119c3858a463cab6121dced7c0bf.tar.gz kernel_samsung_smdk4412-f048fa9c8686119c3858a463cab6121dced7c0bf.tar.bz2 | |
bnx2: Fix hang during rmmod bnx2.
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>
Diffstat (limited to 'drivers/net')
| -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 188e356..949d7a9 100644 --- a/drivers/net/bnx2.c +++ b/drivers/net/bnx2.c @@ -247,6 +247,7 @@ 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) { @@ -6270,6 +6271,7 @@ open_err: bnx2_free_skbs(bp); bnx2_free_irq(bp); bnx2_free_mem(bp); + bnx2_del_napi(bp); return rc; } @@ -6537,6 +6539,7 @@ 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); @@ -8227,7 +8230,16 @@ 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; |