From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
To: Richard Leitner <richard.leitner@skidata.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Marco Felsch <m.felsch@pengutronix.de>
Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
"Gustavo A. R. Silva" <gustavo@embeddedor.com>
Subject: [PATCH] usb: usb251xb: Remove unnecessary comparison of unsigned integer with >= 0
Date: Mon, 18 Mar 2019 09:50:24 -0500 [thread overview]
Message-ID: <20190318145024.GA572@embeddedor> (raw)
There is no need to compare *port* with >= 0 because such comparison
of an unsigned value is always true.
Fix this by removing such comparison.
Addresses-Coverity-ID: 1443949 ("Unsigned compared against 0")
Fixes: 02a50b875046 ("usb: usb251xb: add usb data lane port swap feature")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
drivers/usb/misc/usb251xb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/misc/usb251xb.c b/drivers/usb/misc/usb251xb.c
index 4d72b7d1d383..2c8e2cad7e10 100644
--- a/drivers/usb/misc/usb251xb.c
+++ b/drivers/usb/misc/usb251xb.c
@@ -547,7 +547,7 @@ static int usb251xb_get_ofdata(struct usb251xb *hub,
*/
hub->port_swap = USB251XB_DEF_PORT_SWAP;
of_property_for_each_u32(np, "swap-dx-lanes", prop, p, port) {
- if ((port >= 0) && (port <= data->port_cnt))
+ if (port <= data->port_cnt)
hub->port_swap |= BIT(port);
}
--
2.21.0
next reply other threads:[~2019-03-18 14:51 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-18 14:50 Gustavo A. R. Silva [this message]
2019-03-18 15:34 ` [PATCH] usb: usb251xb: Remove unnecessary comparison of unsigned integer with >= 0 Marco Felsch
2019-03-18 15:46 ` Richard Leitner
2019-03-18 16:48 ` Marco Felsch
2019-03-19 9:33 ` Richard Leitner
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