From 6fda135c908d0f38a0167adcbd71094572e3059b Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Tue, 26 Jun 2012 12:35:24 -0700
Subject: Revert "printk: return -EINVAL if the message len is bigger than the
 buf size"

This reverts commit b56a39ac263e5b8cafedd551a49c2105e68b98c2.

A better patch from Jan will follow this to resolve the issue.

Acked-by: Kay Sievers <kay@vrfy.org>
Cc: Fengguang Wu <wfg@linux.intel.com>
Cc: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Cc: Jan Beulich <JBeulich@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/kernel/printk.c b/kernel/printk.c
index d6a1412..ff05361 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -880,9 +880,7 @@ static int syslog_print(char __user *buf, int size)
 	syslog_seq++;
 	raw_spin_unlock_irq(&logbuf_lock);
 
-	if (len > size)
-		len = -EINVAL;
-	else if (len > 0 && copy_to_user(buf, text, len))
+	if (len > 0 && copy_to_user(buf, text, len))
 		len = -EFAULT;
 
 	kfree(text);
-- 
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