1 files changed, 1 insertions, 1 deletions

diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index a400b861fad3..73d7860b72e2 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);