linux-kernel - [PATCH] ath10k: remove unnecessary comparison of unsigned integer with

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Message-ID: <20181005185623.GA14405@embeddedor.com>
Date:   Fri, 5 Oct 2018 20:56:23 +0200
From:   "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To:     Kalle Valo <kvalo@...eaurora.org>,
        "David S. Miller" <davem@...emloft.net>
Cc:     ath10k@...ts.infradead.org, linux-wireless@...r.kernel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        "Gustavo A. R. Silva" <gustavo@...eddedor.com>
Subject: [PATCH] ath10k: remove unnecessary comparison of unsigned integer
 with < 0

There is no need to compare *ps_state_enable* with < 0 because
such variable is of type u8 (8 bits, unsigned), making it
impossible to hold a negative value.

Fix this by removing such comparison.

Addresses-Coverity-ID: 1473921 ("Unsigned compared against 0")
Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>
---
 drivers/net/wireless/ath/ath10k/debug.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c
index 2c0cb67..15964b3 100644
--- a/drivers/net/wireless/ath/ath10k/debug.c
+++ b/drivers/net/wireless/ath/ath10k/debug.c
@@ -2421,7 +2421,7 @@ static ssize_t ath10k_write_ps_state_enable(struct file *file,
 	if (kstrtou8_from_user(user_buf, count, 0, &ps_state_enable))
 		return -EINVAL;
 
-	if (ps_state_enable > 1 || ps_state_enable < 0)
+	if (ps_state_enable > 1)
 		return -EINVAL;
 
 	mutex_lock(&ar->conf_mutex);
-- 
2.7.4