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scsi: aacraid: error: testing array offset 'bus' after use

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Fix possible indexing array of bound for &aac->hba_map[bus][cid], where
bus and cid boundary check happens later.

Fixes: 0d643ff3c3 ("scsi: aacraid: use aac_tmf_callback for reset fib")
Signed-off-by: Nikola Pajkovsky <npajkovsky@suse.cz>
Reviewed-by: Dave Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Nikola Pajkovsky 2017-09-13 10:46:17 +02:00 committed by Martin K. Petersen
parent 5c756065e4
commit 4cb433e856
1 changed files with 12 additions and 8 deletions
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20
drivers/scsi/aacraid/linit.c
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@ -906,12 +906,14 @@ static int aac_eh_dev_reset(struct scsi_cmnd *cmd)
bus = aac_logical_to_phys(scmd_channel(cmd));
cid = scmd_id(cmd);
info = &aac->hba_map[bus][cid];
if (bus >= AAC_MAX_BUSES || cid >= AAC_MAX_TARGETS ||
info->devtype != AAC_DEVTYPE_NATIVE_RAW)
if (bus >= AAC_MAX_BUSES || cid >= AAC_MAX_TARGETS)
return FAILED;
if (info->reset_state > 0)
info = &aac->hba_map[bus][cid];
if (info->devtype != AAC_DEVTYPE_NATIVE_RAW &&
info->reset_state > 0)
return FAILED;
pr_err("%s: Host adapter reset request. SCSI hang ?\n",
@ -962,12 +964,14 @@ static int aac_eh_target_reset(struct scsi_cmnd *cmd)
bus = aac_logical_to_phys(scmd_channel(cmd));
cid = scmd_id(cmd);
info = &aac->hba_map[bus][cid];
if (bus >= AAC_MAX_BUSES || cid >= AAC_MAX_TARGETS ||
info->devtype != AAC_DEVTYPE_NATIVE_RAW)
if (bus >= AAC_MAX_BUSES || cid >= AAC_MAX_TARGETS)
return FAILED;
if (info->reset_state > 0)
info = &aac->hba_map[bus][cid];
if (info->devtype != AAC_DEVTYPE_NATIVE_RAW &&
info->reset_state > 0)
return FAILED;
pr_err("%s: Host adapter reset request. SCSI hang ?\n",