Messages in this thread Patch in this message | | | Date | Fri, 3 Apr 2009 12:51:41 GMT | From | Li Zefan <> | Subject | [tip:tracing/blktrace-v2] blktrace: small cleanup in blk_msg_write() |
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Commit-ID: 7635b03adf3d7b84da7649b81efa91e6ebf11b85 Gitweb: http://git.kernel.org/tip/7635b03adf3d7b84da7649b81efa91e6ebf11b85 Author: Li Zefan <lizf@cn.fujitsu.com> AuthorDate: Fri, 3 Apr 2009 15:31:34 +0800 Committer: Ingo Molnar <mingo@elte.hu> CommitDate: Fri, 3 Apr 2009 14:48:11 +0200
blktrace: small cleanup in blk_msg_write()
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: "Alan D. Brunelle" <alan.brunelle@hp.com> Cc: Jens Axboe <jens.axboe@oracle.com> LKML-Reference: <49D5BB56.7000807@cn.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
--- kernel/trace/blktrace.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c index a400b86..73d7860 100644 --- a/kernel/trace/blktrace.c +++ b/kernel/trace/blktrace.c @@ -327,7 +327,7 @@ static ssize_t blk_msg_write(struct file *filp, const char __user *buffer, char *msg; struct blk_trace *bt; - if (count > BLK_TN_MAX_MSG - 1) + if (count >= BLK_TN_MAX_MSG) return -EINVAL; msg = kmalloc(count + 1, GFP_KERNEL);
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