From: Vasu Dev Date: Fri, 20 Apr 2012 19:16:38 +0000 (-0700) Subject: [SCSI] libfc: defer releasing master lport until complete fcoe interface cleanuped up X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=3cab4468fd0a4b3c9f22a380e4318c17b6c202d6;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git [SCSI] libfc: defer releasing master lport until complete fcoe interface cleanuped up The fcoe controller has back references, therefore defer releasing master lport which gets freed along scsi_host_put and then free it once fcoe interface is fully cleaned. Signed-off-by: Vasu Dev Acked-by: Neil Horman Tested-by: Ross Brattain Signed-off-by: Robert Love Signed-off-by: James Bottomley --- diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c index 09a6a26282ac..481ba6f592ef 100644 --- a/drivers/scsi/fcoe/fcoe.c +++ b/drivers/scsi/fcoe/fcoe.c @@ -472,6 +472,7 @@ static void fcoe_interface_cleanup(struct fcoe_interface *fcoe) /* Release the self-reference taken during fcoe_interface_create() */ /* tear-down the FCoE controller */ fcoe_ctlr_destroy(fip); + scsi_host_put(fcoe->ctlr.lp->host); kfree(fcoe); dev_put(netdev); module_put(THIS_MODULE); @@ -976,8 +977,12 @@ static void fcoe_if_destroy(struct fc_lport *lport) /* Free memory used by statistical counters */ fc_lport_free_stats(lport); - /* Release the Scsi_Host */ - scsi_host_put(lport->host); + /* + * Release the Scsi_Host for vport but hold on to + * master lport until it fcoe interface fully cleaned-up. + */ + if (lport->vport) + scsi_host_put(lport->host); } /**