From 7b4feee973ca7be63345b92a987ef7ef879b179b Mon Sep 17 00:00:00 2001 From: "Darrick J. Wong" Date: Tue, 14 Nov 2006 18:02:07 -0800 Subject: [PATCH] [PATCH] aic94xx: delete ascb timers when freeing queues When the aic94xx driver creates ascbs, each ascb is initialized with a timeout timer. If there are any ascbs left over when the driver is being torn down, these timers need to be deleted. In particular, we seem to hit this case when ascbs are issued yet never end up on the done list. Right now there's a sequencer bug that results in this happening every so often. CONTROL PHY commands are typically sent when things are really messed up with the sequencer; however, any other leftover ascb should produce loud warnings. Signed-off-by: Darrick J. Wong Signed-off-by: James Bottomley --- drivers/scsi/aic94xx/aic94xx_init.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/scsi/aic94xx/aic94xx_init.c b/drivers/scsi/aic94xx/aic94xx_init.c index 99743ca29c..3a5bbba397 100644 --- a/drivers/scsi/aic94xx/aic94xx_init.c +++ b/drivers/scsi/aic94xx/aic94xx_init.c @@ -724,6 +724,15 @@ static void asd_free_queues(struct asd_ha_struct *asd_ha) list_for_each_safe(pos, n, &pending) { struct asd_ascb *ascb = list_entry(pos, struct asd_ascb, list); + /* + * Delete unexpired ascb timers. This may happen if we issue + * a CONTROL PHY scb to an adapter and rmmod before the scb + * times out. Apparently we don't wait for the CONTROL PHY + * to complete, so it doesn't matter if we kill the timer. + */ + del_timer_sync(&ascb->timer); + WARN_ON(ascb->scb->header.opcode != CONTROL_PHY); + list_del_init(pos); ASD_DPRINTK("freeing from pending\n"); asd_ascb_free(ascb); -- 2.39.5