Patch "thunderbolt: Remove superfluous check" has been added to the 4.13-stable tree

Patch "thunderbolt: Remove superfluous check" has been added to the 4.13-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    thunderbolt: Remove superfluous check

to the 4.13-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     thunderbolt-remove-superfluous-check.patch
and it can be found in the queue-4.13 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 8fdd6ab36197ad891233572c57781b1f537da0ac Mon Sep 17 00:00:00 2001
From: "Bernat, Yehezkel" <yehezkel.bernat@intel.com>
Date: Tue, 15 Aug 2017 08:19:01 +0300
Subject: thunderbolt: Remove superfluous check

From: Bernat, Yehezkel <yehezkel.bernat@intel.com>

commit 8fdd6ab36197ad891233572c57781b1f537da0ac upstream.

The key size is tested by hex2bin() already (as '\0' isn't an hex digit)

Suggested-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Yehezkel Bernat <yehezkel.bernat@intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/thunderbolt/switch.c |    3 ---
 1 file changed, 3 deletions(-)

--- a/drivers/thunderbolt/switch.c
+++ b/drivers/thunderbolt/switch.c
@@ -808,9 +808,6 @@ static ssize_t key_store(struct device *
 	u8 key[TB_SWITCH_KEY_SIZE];
 	ssize_t ret = count;
 
-	if (count < 64)
-		return -EINVAL;
-
 	if (hex2bin(key, buf, sizeof(key)))
 		return -EINVAL;
 


Patches currently in stable-queue which might be from yehezkel.bernat@intel.com are

queue-4.13/thunderbolt-make-key-root-only-accessible.patch
queue-4.13/thunderbolt-remove-superfluous-check.patch
queue-4.13/thunderbolt-allow-clearing-the-key.patch