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| author | Jan Beulich <jbeulich@novell.com> | 2008-03-13 09:13:30 +0000 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-03-13 13:15:52 -0700 |
| commit | b15a3891c916f32a29832886a053a48be2741d4d (patch) | |
| tree | 59971b1f3b1961b7c13a170b1a3617431db03ac5 /drivers/pci | |
| parent | 96e31022a1b6e7cb173cbb3dce1fde7ba548860a (diff) | |
| download | op-kernel-dev-b15a3891c916f32a29832886a053a48be2741d4d.zip op-kernel-dev-b15a3891c916f32a29832886a053a48be2741d4d.tar.gz | |
avoid endless loops in lib/swiotlb.c
Commit 681cc5cd3efbeafca6386114070e0bfb5012e249 ("iommu sg merging:
swiotlb: respect the segment boundary limits") introduced two
possibilities for entering an endless loop in lib/swiotlb.c:
- if max_slots is zero (possible if mask is ~0UL)
- if the number of slots requested fits into a swiotlb segment, but is
too large for the part of a segment which remains after considering
offset_slots
This fixes them
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/pci')
0 files changed, 0 insertions, 0 deletions
