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[SCSI] mvsas: bug fix, null pointer may be used

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Null pointer check to avoid corruption.

Signed-off-by: Ying Chu <[email protected]>
Signed-off-by: Andy Yan <[email protected]>
Signed-off-by: Ke Wei <[email protected]>
Signed-off-by: James Bottomley <[email protected]>
This commit is contained in:
Andy Yan 2009-05-11 21:49:52 +08:00 • committed by James Bottomley
commit 0f980a8716
1 changed files with 4 additions and 4 deletions
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8
drivers/scsi/mvsas/mv_sas.c
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@ -1873,11 +1873,11 @@ int mvs_slot_complete(struct mvs_info *mvi, u32 rx_desc, u32 flags)
}
out:
if (mvi_dev)
if (mvi_dev) {
mvi_dev->runing_req--;
if (sas_protocol_ata(task->task_proto))
mvs_free_reg_set(mvi, mvi_dev);
if (sas_protocol_ata(task->task_proto))
mvs_free_reg_set(mvi, mvi_dev);
}
mvs_slot_task_free(mvi, task, slot, slot_idx);
sts = tstat->stat;