Commit-ID: c79ee4e466dd12347f112e2af306dca35198458f Gitweb: http://git.kernel.org/tip/c79ee4e466dd12347f112e2af306dca35198458f Author: Joerg Roedel <joerg.roedel@xxxxxxx> AuthorDate: Tue, 16 Jun 2009 12:23:58 +0200 Committer: Joerg Roedel <joerg.roedel@xxxxxxx> CommitDate: Tue, 16 Jun 2009 12:29:40 +0200 dma-debug: fix off-by-one error in overlap function This patch fixes a bug in the overlap function which returned true if one region ends exactly before the second region begins. This is no overlap but the function returned true in that case. Cc: stable@xxxxxxxxxx Reported-by: Andrew Randrianasulu <randrik@xxxxxxx> Signed-off-by: Joerg Roedel <joerg.roedel@xxxxxxx> --- lib/dma-debug.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/lib/dma-debug.c b/lib/dma-debug.c index 3b93129..a9b6b5c 100644 --- a/lib/dma-debug.c +++ b/lib/dma-debug.c @@ -862,7 +862,7 @@ static inline bool overlap(void *addr, u64 size, void *start, void *end) return ((addr >= start && addr < end) || (addr2 >= start && addr2 < end) || - ((addr < start) && (addr2 >= end))); + ((addr < start) && (addr2 > end))); } static void check_for_illegal_area(struct device *dev, void *addr, u64 size) -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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