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Commit a5db3341 authored by Mikulas Patocka's avatar Mikulas Patocka Committed by Linus Torvalds
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BUG_ON on kernel misbehavior on A100U2W driver 



With broken Sparc64 IOMMU accounting, the kernel submits larger requests
then allowed.  Better to crash on BUG than corrupt memory.

Signed-off-by: default avatarMikulas Patocka <mpatocka@redhat.com>
Acked-by: default avatarJames Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 56d387ec

drivers/scsi/a100u2w.c

+1 −0
Original line number Diff line number Diff line
@@ -866,6 +866,7 @@ static void inia100_build_scb(struct orc_host * host, struct orc_scb * scb, stru 


	count_sg = scsi_dma_map(cmd);

	BUG_ON(count_sg < 0);

	BUG_ON(count_sg > TOTAL_SG_ENTRY);



	/* Build the scatter gather lists */

	if (count_sg) {