[SCSI] lpfc 8.3.9: Fix locking and memory issues
- Use the hbalock when changing the fc_flag.
- Use the host_lock when changeing the sli_flag.
- Prevent NULL pointer dereference after dma_alloc_coherent failure.
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
diff --git a/drivers/scsi/lpfc/lpfc_mbox.c b/drivers/scsi/lpfc/lpfc_mbox.c
index 6c1d8b3..6c4dce1 100644
--- a/drivers/scsi/lpfc/lpfc_mbox.c
+++ b/drivers/scsi/lpfc/lpfc_mbox.c
@@ -1707,7 +1707,8 @@
alloc_len - sizeof(union lpfc_sli4_cfg_shdr);
}
/* The sub-header is in DMA memory, which needs endian converstion */
- lpfc_sli_pcimem_bcopy(cfg_shdr, cfg_shdr,
+ if (cfg_shdr)
+ lpfc_sli_pcimem_bcopy(cfg_shdr, cfg_shdr,
sizeof(union lpfc_sli4_cfg_shdr));
return alloc_len;