From: Andi Kleen <ak@suse.de>
Date: Wed, 11 Jan 2006 21:44:54 +0000 (+0100)
Subject: [PATCH] i386: make pci_map_single/pci_map_sg warn for zero length.
X-Git-Tag: v2.6.16-rc1~330
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fd78f11790c37e2165733699f50450500e63a7b3;p=pandora-kernel.git

[PATCH] i386: make pci_map_single/pci_map_sg warn for zero length.

As suggested by Linus.

This catches driver bugs that could cause corruption on IOMMU architectures.

Also I converted the BUGs to out_of_line_bug()s to save a bit
of text space.

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