From: Jayamohan Kallickal <jayamohan.kallickal@xxxxxxxxxx>
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@xxxxxxxxxx>
Signed-off-by: Mike Christie <michaelc@xxxxxxxxxxx>
---
drivers/scsi/be2iscsi/be_main.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index e166d54..7b0a8ab 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -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;
--
1.7.6
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