commit 8fdd6ab36197ad891233572c57781b1f537da0ac
author Bernat, Yehezkel <yehezkel.bernat@intel.com> Tue Aug 15 08:19:01 2017 +0300
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> Mon Aug 28 16:21:32 2017 +0200
tree b18a925fc91b53d49bf9e51953ab163b8178ed5e
parent 0875957e4bdd61d7969c47e29dab8769c9ab2cf9

thunderbolt: Remove superfluous check

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

diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c
index e9391bb..69fde0b 100644
--- a/drivers/thunderbolt/switch.c
+++ b/drivers/thunderbolt/switch.c
@@ -808,9 +808,6 @@ static ssize_t key_store(struct device *dev, struct device_attribute *attr,
 	u8 key[TB_SWITCH_KEY_SIZE];
 	ssize_t ret = count;
 
-	if (count < 64)
-		return -EINVAL;
-
 	if (hex2bin(key, buf, sizeof(key)))
 		return -EINVAL;