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From: Colin King <colin.king@canonical.com>
To: Jacek Anaszewski <jacek.anaszewski@gmail.com>,
Pavel Machek <pavel@ucw.cz>, Dan Murphy <dmurphy@ti.com>,
linux-leds@vger.kernel.org
Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH][V2] leds: TI LMU: fix u8 variable comparisons with less than zero
Date: Wed, 22 May 2019 11:17:45 +0100 [thread overview]
Message-ID: <20190522101745.21828-1-colin.king@canonical.com> (raw)
From: Colin Ian King <colin.king@canonical.com>
The u8 variables ramp_ups and ramp_downs are being compared to less
than zero, this will always be false. Fix this by making the ramp
variables ints.
Addresses-Coverity: ("Unsigned compared against 0")
Fixes: 9a8e66ebeaa2 ("leds: TI LMU: Add common code for TI LMU devices")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
V2: make u8 vars ints rather than removing the comparison. Thanks once
more to Dan Carpenter for spotting my clearly stupid V1 version and
correcting my mistake.
---
drivers/leds/leds-ti-lmu-common.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/leds/leds-ti-lmu-common.c b/drivers/leds/leds-ti-lmu-common.c
index adc7293004f1..c9ab40d5a6ba 100644
--- a/drivers/leds/leds-ti-lmu-common.c
+++ b/drivers/leds/leds-ti-lmu-common.c
@@ -84,7 +84,7 @@ static int ti_lmu_common_convert_ramp_to_index(unsigned int usec)
int ti_lmu_common_set_ramp(struct ti_lmu_bank *lmu_bank)
{
struct regmap *regmap = lmu_bank->regmap;
- u8 ramp, ramp_up, ramp_down;
+ int ramp, ramp_up, ramp_down;
if (lmu_bank->ramp_up_usec == 0 && lmu_bank->ramp_down_usec == 0) {
ramp_up = 0;
--
2.20.1
next reply other threads:[~2019-05-22 10:18 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-22 10:17 Colin King [this message]
2019-05-22 11:42 ` Dan Murphy
2019-05-22 20:48 ` Jacek Anaszewski
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