* [PATCH][V2] leds: TI LMU: fix u8 variable comparisons with less than zero
@ 2019-05-22 10:17 ` Colin King
0 siblings, 0 replies; 7+ messages in thread
From: Colin King @ 2019-05-22 10:17 UTC (permalink / raw)
To: Jacek Anaszewski, Pavel Machek, Dan Murphy, linux-leds
Cc: kernel-janitors, linux-kernel
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
^ permalink raw reply related [flat|nested] 7+ messages in thread
* [PATCH][V2] leds: TI LMU: fix u8 variable comparisons with less than zero
@ 2019-05-22 10:17 ` Colin King
0 siblings, 0 replies; 7+ messages in thread
From: Colin King @ 2019-05-22 10:17 UTC (permalink / raw)
To: Jacek Anaszewski, Pavel Machek, Dan Murphy, linux-leds
Cc: kernel-janitors, linux-kernel
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
^ permalink raw reply related [flat|nested] 7+ messages in thread
* Re: [PATCH][V2] leds: TI LMU: fix u8 variable comparisons with less than zero
2019-05-22 10:17 ` Colin King
(?)
@ 2019-05-22 11:42 ` Dan Murphy
-1 siblings, 0 replies; 7+ messages in thread
From: Dan Murphy @ 2019-05-22 11:42 UTC (permalink / raw)
To: Colin King, Jacek Anaszewski, Pavel Machek, linux-leds
Cc: kernel-janitors, linux-kernel
On 5/22/19 5:17 AM, Colin King wrote:
> 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;
>
Reviewed-by: Dan Murphy <dmurphy@ti.com>
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH][V2] leds: TI LMU: fix u8 variable comparisons with less than zero
@ 2019-05-22 11:42 ` Dan Murphy
0 siblings, 0 replies; 7+ messages in thread
From: Dan Murphy @ 2019-05-22 11:42 UTC (permalink / raw)
To: Colin King, Jacek Anaszewski, Pavel Machek, linux-leds
Cc: kernel-janitors, linux-kernel
On 5/22/19 5:17 AM, Colin King wrote:
> 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;
>
Reviewed-by: Dan Murphy <dmurphy@ti.com>
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH][V2] leds: TI LMU: fix u8 variable comparisons with less than zero
@ 2019-05-22 11:42 ` Dan Murphy
0 siblings, 0 replies; 7+ messages in thread
From: Dan Murphy @ 2019-05-22 11:42 UTC (permalink / raw)
To: Colin King, Jacek Anaszewski, Pavel Machek, linux-leds
Cc: kernel-janitors, linux-kernel
On 5/22/19 5:17 AM, Colin King wrote:
> 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;
>
Reviewed-by: Dan Murphy <dmurphy@ti.com>
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH][V2] leds: TI LMU: fix u8 variable comparisons with less than zero
2019-05-22 10:17 ` Colin King
@ 2019-05-22 20:48 ` Jacek Anaszewski
-1 siblings, 0 replies; 7+ messages in thread
From: Jacek Anaszewski @ 2019-05-22 20:48 UTC (permalink / raw)
To: Colin King
Cc: Pavel Machek, Dan Murphy, linux-leds, kernel-janitors, linux-kernel
Hi Colin,
Thank you for the patch.
On 5/22/19 12:17 PM, Colin King wrote:
> 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;
>
Applied.
--
Best regards,
Jacek Anaszewski
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH][V2] leds: TI LMU: fix u8 variable comparisons with less than zero
@ 2019-05-22 20:48 ` Jacek Anaszewski
0 siblings, 0 replies; 7+ messages in thread
From: Jacek Anaszewski @ 2019-05-22 20:48 UTC (permalink / raw)
To: Colin King
Cc: Pavel Machek, Dan Murphy, linux-leds, kernel-janitors, linux-kernel
Hi Colin,
Thank you for the patch.
On 5/22/19 12:17 PM, Colin King wrote:
> 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;
>
Applied.
--
Best regards,
Jacek Anaszewski
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2019-05-22 20:48 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
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2019-05-22 10:17 [PATCH][V2] leds: TI LMU: fix u8 variable comparisons with less than zero Colin King
2019-05-22 10:17 ` Colin King
2019-05-22 11:42 ` Dan Murphy
2019-05-22 11:42 ` Dan Murphy
2019-05-22 11:42 ` Dan Murphy
2019-05-22 20:48 ` Jacek Anaszewski
2019-05-22 20:48 ` Jacek Anaszewski
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