Variable val is unsigned, so checking whether it is less than zero is
redundant.

Signed-off-by: Christos Gkekas <chris.ge...@gmail.com>
---
 drivers/net/wireless/ath/ath9k/debug.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath9k/debug.c 
b/drivers/net/wireless/ath/ath9k/debug.c
index 01fa301..4f5f141 100644
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -1167,7 +1167,7 @@ static ssize_t write_file_tpc(struct file *file, const 
char __user *user_buf,
        if (kstrtoul(buf, 0, &val))
                return -EINVAL;
 
-       if (val < 0 || val > 1)
+       if (val > 1)
                return -EINVAL;
 
        tpc_enabled = !!val;
-- 
2.7.4

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