linux-kernel - [PATCH] Input: synaptics-rmi4: Clean up redundant check

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Message-Id: <1507501611-16703-1-git-send-email-chris.gekas@gmail.com>
Date:   Sun,  8 Oct 2017 23:26:51 +0100
From:   Christos Gkekas <chris.gekas@...il.com>
To:     Dmitry Torokhov <dmitry.torokhov@...il.com>,
        linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Christos Gkekas <chris.gekas@...il.com>
Subject: [PATCH] Input: synaptics-rmi4: Clean up redundant check

Variable size_presence_reg·is unsigned so checking whether it is less
than zero is redundant.

Signed-off-by: Christos Gkekas <chris.gekas@...il.com>
---
 drivers/input/rmi4/rmi_driver.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/rmi4/rmi_driver.c b/drivers/input/rmi4/rmi_driver.c
index 4f2bb59..68fcb30 100644
--- a/drivers/input/rmi4/rmi_driver.c
+++ b/drivers/input/rmi4/rmi_driver.c
@@ -601,7 +601,7 @@ int rmi_read_register_desc(struct rmi_device *d, u16 addr,
 		return ret;
 	++addr;
 
-	if (size_presence_reg < 0 || size_presence_reg > 35)
+	if (size_presence_reg > 35)
 		return -EIO;
 
 	memset(buf, 0, sizeof(buf));
-- 
2.7.4