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>

1 files changed, 0 insertions, 3 deletions

diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c
index e9391bbd4036..69fde0b30eda 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;