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>
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				| @ -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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