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Date: Sat, 27 Feb 2010 20:35:13 +0300 From: Dmitry Monakhov <dmonakhov@...nvz.org> To: linux-kernel@...r.kernel.org Cc: jens.axboe@...cle.com, Dmitry Monakhov <dmonakhov@...nvz.org> Subject: [PATCH 2/2] blktrace: perform cleanup after setup error Currently even if BLKTRACESETUP ioctl has failed user must call BLKTRACETEARDOWN to be shure what all staff was cleaned, which is contr-intuitive. Let's setup ioctl make necessery cleanup by it self. Signed-off-by: Dmitry Monakhov <dmonakhov@...nvz.org> --- kernel/trace/blktrace.c | 5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-) diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c index d9d6206..07f945a 100644 --- a/kernel/trace/blktrace.c +++ b/kernel/trace/blktrace.c @@ -540,9 +540,10 @@ int blk_trace_setup(struct request_queue *q, char *name, dev_t dev, if (ret) return ret; - if (copy_to_user(arg, &buts, sizeof(buts))) + if (copy_to_user(arg, &buts, sizeof(buts))) { + blk_trace_remove(q); return -EFAULT; - + } return 0; } EXPORT_SYMBOL_GPL(blk_trace_setup); -- 1.6.6 -- 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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