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[SCSI] lpfc 8.3.6 : Fix critical errors

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Fix errors relating to crashes and hangs.
 - Fix crash due to list corruption while unloading driver.
 - Fix panic during pci-hot-plug testing.
 - Fix panic when unmapping luns.
 - Fixed total_scsi_bufs counting could cause exhausted memory.
 - Fixed locking issue causing hang.
 - Fixed the call from lpfc_new_scsi_buf_s3 to use lpfc_release_scsi_buf_s3.

Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
James Smart
2009-11-18 15:40:49 -05:00
committed by James Bottomley
parent 891478a244
commit 1c6f4ef5d6
3 changed files with 38 additions and 13 deletions
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4
drivers/scsi/lpfc/lpfc_init.c
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@ -2320,6 +2320,7 @@ lpfc_scsi_free(struct lpfc_hba *phba)
spin_lock_irq(&phba->hbalock);
/* Release all the lpfc_scsi_bufs maintained by this host. */
spin_lock(&phba->scsi_buf_list_lock);
list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
list_del(&sb->list);
pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
@ -2327,6 +2328,7 @@ lpfc_scsi_free(struct lpfc_hba *phba)
kfree(sb);
phba->total_scsi_bufs--;
}
spin_unlock(&phba->scsi_buf_list_lock);
/* Release all the lpfc_iocbq entries maintained by this host. */
list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
@ -2334,9 +2336,7 @@ lpfc_scsi_free(struct lpfc_hba *phba)
kfree(io);
phba->total_iocbq_bufs--;
}
spin_unlock_irq(&phba->hbalock);
return 0;
}