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[SCSI] be2iscsi: Fix for case where task->sc was cleanedup earlier

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This patch fixes a bug where the task->sc was cleaned up earlier on a
different thread, possibly abort, and the completion comes later.

This was causing a crash which has been reported in multiple places

Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Jayamohan Kallickal 2011-10-07 19:31:10 -05:00 committed by James Bottomley
parent 685e16fdcf
commit bd5354511d
1 changed files with 5 additions and 0 deletions
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5
drivers/scsi/be2iscsi/be_main.c
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@ -1123,7 +1123,12 @@ be_complete_io(struct beiscsi_conn *beiscsi_conn,
& SOL_STS_MASK) >> 8);
flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32]
& SOL_FLAGS_MASK) >> 24) | 0x80;
if (!task->sc) {
if (io_task->scsi_cmnd)
scsi_dma_unmap(io_task->scsi_cmnd);
return;
}
task->sc->result = (DID_OK << 16) | status;
if (rsp != ISCSI_STATUS_CMD_COMPLETED) {
task->sc->result = DID_ERROR << 16;