scatterlist: don't BUG when we can trivially return a proper error.
authorNick Bowler <nbowler@elliptictech.com>
Tue, 18 Dec 2012 00:05:20 +0000 (16:05 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 18 Dec 2012 01:15:28 +0000 (17:15 -0800)
commit6fd59a83b9261fa53eaf98fb5514abba504a3ea3
tree08dfeef55544c0c30e1567618f62ae771feeac53
parente71ec593201e1b367b5f22955e3db49e3c562e67
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.

[akpm@linux-foundation.org: s/E2BIG/EINVAL/]
Signed-off-by: Nick Bowler <nbowler@elliptictech.com>
Cc: Maxim Levitsky <maximlevitsky@gmail.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
lib/scatterlist.c