tree 73f52ad8b0b61a5d863b324041bcc519d7cc5242
parent 7ca0b3bf695632003a2a0f98b9fc1451b0483346
author Andi Kleen <ak@muc.de> 1135086319 +0100
committer Linus Torvalds <torvalds@g5.osdl.org> 1135102434 -0800

[PATCH] Fix swiotlb pci_map_sg error handling

The overflow checking condition in lib/swiotlb.c was wrong.
It would first run a NULL pointer through virt_to_phys before
testing it. Since pci_map_sg overflow is not that uncommon
and causes data corruption (including broken file systems) when not
properly detected I think it's better to fix it in 2.6.15.

This affects x86-64 and IA64.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>