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authorXiaotian Feng <xtfeng@gmail.com>2012-10-31 00:29:57 +0000
committerDavid S. Miller <davem@davemloft.net>2012-11-03 15:10:15 -0400
commit175c0dffef310fc7d7f026ca4a7682beb2fbd8ec (patch)
treeb9ff3f9ae6b5a1a6e41b1b950d3820d68c5ef8ac /drivers/net/wireless/b43legacy
parentd145f7ec23b6366e2b75442eaefafa11077ed568 (diff)
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/b43legacy')
-rw-r--r--drivers/net/wireless/b43legacy/pio.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wireless/b43legacy/pio.c b/drivers/net/wireless/b43legacy/pio.c
index 192251adf98..282eedec675 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);