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Date: Thu, 1 Nov 2012 15:03:00 -0400 From: Nick Bowler <nbowler@...iptictech.com> To: linux-kernel@...r.kernel.org Subject: [PATCH] scatterlist: don't BUG when we can trivially return a proper error. There is absolutely no reason to crash the kernel when we have a perfectly good return value already available to use for conveying failure status. Let's return an error code instead of crashing the kernel: that sounds like a much better plan. Signed-off-by: Nick Bowler <nbowler@...iptictech.com> --- lib/scatterlist.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/lib/scatterlist.c b/lib/scatterlist.c index 3675452b23ca..11ecaf000696 100644 --- a/lib/scatterlist.c +++ b/lib/scatterlist.c @@ -248,7 +248,8 @@ int __sg_alloc_table(struct sg_table *table, unsigned int nents, unsigned int left; #ifndef ARCH_HAS_SG_CHAIN - BUG_ON(nents > max_ents); + if (WARN_ON_ONCE(nents > max_ents)) + return -E2BIG; #endif memset(table, 0, sizeof(*table)); -- 1.7.8.6 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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