From: Wolfram Sang <wsa@the-dreams.de>
To: linux-i2c@vger.kernel.org
Cc: linux-sh@vger.kernel.org, Wolfram Sang <wsa@the-dreams.de>,
Magnus Damm <magnus.damm@gmail.com>,
Simon Horman <horms@verge.net.au>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Subject: [PATCH] i2c: rcar: remove sign-compare flaw
Date: Sat, 20 Sep 2014 10:07:37 +0000 [thread overview]
Message-ID: <1411207657-23707-1-git-send-email-wsa@the-dreams.de> (raw)
From: Wolfram Sang <wsa+renesas@sang-engineering.com>
gcc rightfully says:
drivers/i2c/busses/i2c-rcar.c:198:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
drivers/i2c/busses/i2c-rcar.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c
index 4c6fa78063fb..1eed463662c4 100644
--- a/drivers/i2c/busses/i2c-rcar.c
+++ b/drivers/i2c/busses/i2c-rcar.c
@@ -195,7 +195,7 @@ static int rcar_i2c_clock_calculate(struct rcar_i2c_priv *priv,
*/
rate = clk_get_rate(priv->clk);
cdf = rate / 20000000;
- if (cdf >= 1 << cdf_width) {
+ if (cdf >= 1U << cdf_width) {
dev_err(dev, "Input clock %lu too high\n", rate);
return -EIO;
}
--
2.0.0
next reply other threads:[~2014-09-20 10:07 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-20 10:07 Wolfram Sang [this message]
2014-09-28 23:15 ` [PATCH] i2c: rcar: remove sign-compare flaw Laurent Pinchart
2014-09-29 20:44 ` Wolfram Sang
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