From: Brian King Date: Fri, 15 Aug 2008 15:59:21 +0000 (-0500) Subject: [SCSI] ibmvfc: Fix another hang on module removal X-Git-Tag: v2.6.27-rc4~33^2~5 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3eddc569770a76f2ca65621cdde3c0a2552b5b0c;p=linux-2.6 [SCSI] ibmvfc: Fix another hang on module removal This fixes a hang on module removal. The module removal code was setting the hosts's state to IBMVFC_HOST_OFFLINE before tearing down the kernel thread, but, due to a bug in ibmvfc_wait_while_resetting, was not waiting for the kernel thread's offlining work to be done prior to destroying the kernel thread, which left the scsi host in a blocked state which we never got out of. Signed-off-by: Brian King Signed-off-by: James Bottomley --- diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index ae560bc04f..ee11568d58 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -1059,9 +1059,10 @@ static void ibmvfc_get_starget_port_id(struct scsi_target *starget) static int ibmvfc_wait_while_resetting(struct ibmvfc_host *vhost) { long timeout = wait_event_timeout(vhost->init_wait_q, - (vhost->state == IBMVFC_ACTIVE || - vhost->state == IBMVFC_HOST_OFFLINE || - vhost->state == IBMVFC_LINK_DEAD), + ((vhost->state == IBMVFC_ACTIVE || + vhost->state == IBMVFC_HOST_OFFLINE || + vhost->state == IBMVFC_LINK_DEAD) && + vhost->action == IBMVFC_HOST_ACTION_NONE), (init_timeout * HZ)); return timeout ? 0 : -EIO;