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Commit dd48ebf7 authored by Ed Lin - PTU's avatar Ed Lin - PTU Committed by James Bottomley
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[SCSI] stex: Fix for potential invalid response 



The interrupt routine is good for normal cases. However, if the firmware
is abnormal and returns an invalid response, the driver may reuse a
ccb structure that has already been handled. This may cause problem.
Fix this by setting the req member to NULL. Next time we know the
response is invalid and handle accordingly if req is NULL.

Signed-off-by: default avatarEd Lin <ed.lin@promise.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@HansenPartnership.com>
parent a4976d68

drivers/scsi/stex.c

+1 −0
Original line number Diff line number Diff line
@@ -746,6 +746,7 @@ static void stex_mu_intr(struct st_hba *hba, u32 doorbell) 
				stex_copy_data(ccb, resp, size);

		}



		ccb->req = NULL;

		ccb->srb_status = resp->srb_status;

		ccb->scsi_status = resp->scsi_status;