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thunderbolt: Remove superfluous check

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

Suggested-by: Andy Shevchenko <[email protected]>
Signed-off-by: Yehezkel Bernat <[email protected]>
Acked-by: Mika Westerberg <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Bernat, Yehezkel 2017-08-15 08:19:01 +03:00 • committed by Greg Kroah-Hartman
commit 8fdd6ab361
1 changed files with 0 additions and 3 deletions
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3
drivers/thunderbolt/switch.c
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@ -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;