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authorJames Smart <james.smart@emulex.com>2010-02-12 14:43:01 -0500
committerJames Bottomley <James.Bottomley@suse.de>2010-02-17 17:41:19 -0600
commit72100cc43262fa39821b3debc04be1a7a17b3428 (patch)
tree2f313571ee9c9cf4d4a16f2a6e69f82c569b9757 /drivers/scsi/lpfc/lpfc_mbox.c
parent84d1b006978e78e27f22beb5cfbc4d349bac6df7 (diff)
downloadblackbird-op-linux-72100cc43262fa39821b3debc04be1a7a17b3428.tar.gz
blackbird-op-linux-72100cc43262fa39821b3debc04be1a7a17b3428.zip
[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>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_mbox.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_mbox.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/scsi/lpfc/lpfc_mbox.c b/drivers/scsi/lpfc/lpfc_mbox.c
index 6c1d8b3fe8cc..6c4dce1a30ca 100644
--- a/drivers/scsi/lpfc/lpfc_mbox.c
+++ b/drivers/scsi/lpfc/lpfc_mbox.c
@@ -1707,7 +1707,8 @@ lpfc_sli4_config(struct lpfc_hba *phba, struct lpfcMboxq *mbox,
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;
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