diff options
| author | Xiaotian Feng <xtfeng@gmail.com> | 2012-10-31 01:29:57 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-11-03 20:10:15 +0100 |
| commit | 175c0dffef310fc7d7f026ca4a7682beb2fbd8ec (patch) | |
| tree | b9ff3f9ae6b5a1a6e41b1b950d3820d68c5ef8ac /drivers/net/wireless | |
| parent | tipc: do not use tasklet_disable before tasklet_kill (diff) | |
| download | linux-175c0dffef310fc7d7f026ca4a7682beb2fbd8ec.tar.xz linux-175c0dffef310fc7d7f026ca4a7682beb2fbd8ec.zip | |
drivers/net: use tasklet_kill in device remove/close process
Some driver uses tasklet_disable in device remove/close process,
tasklet_disable will inc tasklet->count and return. If the tasklet
is not handled yet because some softirq pressure, the tasklet will
placed on the tasklet_vec, never have a chance to excute. This might
lead to ksoftirqd heavy loaded, wakeup with pending_softirq, but
tasklet is disabled. tasklet_kill should be used in this case.
Signed-off-by: Xiaotian Feng <dannyfeng@tencent.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/b43legacy/pio.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wireless/b43legacy/pio.c b/drivers/net/wireless/b43legacy/pio.c index 192251adf986..282eedec675e 100644 --- a/drivers/net/wireless/b43legacy/pio.c +++ b/drivers/net/wireless/b43legacy/pio.c @@ -382,7 +382,7 @@ static void cancel_transfers(struct b43legacy_pioqueue *queue) { struct b43legacy_pio_txpacket *packet, *tmp_packet; - tasklet_disable(&queue->txtask); + tasklet_kill(&queue->txtask); list_for_each_entry_safe(packet, tmp_packet, &queue->txrunning, list) free_txpacket(packet, 0); |