[SCSI] ipr: dlpar failed when adding an adapter back

Reinitialize resource queue prior to freeing resource entries to ensure they
are not referenced. This fixes an issue with target_destoy accessing memory
after it was freed.

Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index 21e0a0a..2197b57 100644 (file)
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -9728,6 +9728,7 @@ static void __ipr_remove(struct pci_dev *pdev)
        spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
        wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
        flush_work(&ioa_cfg->work_q);
+       INIT_LIST_HEAD(&ioa_cfg->used_res_q);
        spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
 
        spin_lock(&ipr_driver_lock);