* [PATCH] [media] fimc-lite: Fix the variable type to avoid possible crash
@ 2013-02-21 11:54 Shaik Ameer Basha
2013-02-21 11:54 ` [PATCH] [media] fimc-lite: Initialize 'step' field in fimc_lite_ctrl structure Shaik Ameer Basha
2013-03-07 14:51 ` [PATCH] [media] fimc-lite: Fix the variable type to avoid possible crash Sylwester Nawrocki
0 siblings, 2 replies; 4+ messages in thread
From: Shaik Ameer Basha @ 2013-02-21 11:54 UTC (permalink / raw)
To: linux-media; +Cc: s.nawrocki
Changing the variable type to 'int' from 'unsigned int'. Driver
logic expects the variable type to be 'int'.
Signed-off-by: Shaik Ameer Basha <shaik.ameer@samsung.com>
---
drivers/media/platform/s5p-fimc/fimc-lite-reg.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/media/platform/s5p-fimc/fimc-lite-reg.c b/drivers/media/platform/s5p-fimc/fimc-lite-reg.c
index f0af075..3c7dd65 100644
--- a/drivers/media/platform/s5p-fimc/fimc-lite-reg.c
+++ b/drivers/media/platform/s5p-fimc/fimc-lite-reg.c
@@ -128,7 +128,7 @@ static const u32 src_pixfmt_map[8][3] = {
void flite_hw_set_source_format(struct fimc_lite *dev, struct flite_frame *f)
{
enum v4l2_mbus_pixelcode pixelcode = dev->fmt->mbus_code;
- unsigned int i = ARRAY_SIZE(src_pixfmt_map);
+ int i = ARRAY_SIZE(src_pixfmt_map);
u32 cfg;
while (i-- >= 0) {
@@ -224,7 +224,7 @@ static void flite_hw_set_out_order(struct fimc_lite *dev, struct flite_frame *f)
{ V4L2_MBUS_FMT_VYUY8_2X8, FLITE_REG_CIODMAFMT_CRYCBY },
};
u32 cfg = readl(dev->regs + FLITE_REG_CIODMAFMT);
- unsigned int i = ARRAY_SIZE(pixcode);
+ int i = ARRAY_SIZE(pixcode);
while (i-- >= 0)
if (pixcode[i][0] == dev->fmt->mbus_code)
--
1.7.9.5
^ permalink raw reply related [flat|nested] 4+ messages in thread
* [PATCH] [media] fimc-lite: Initialize 'step' field in fimc_lite_ctrl structure
2013-02-21 11:54 [PATCH] [media] fimc-lite: Fix the variable type to avoid possible crash Shaik Ameer Basha
@ 2013-02-21 11:54 ` Shaik Ameer Basha
2013-03-07 14:51 ` [PATCH] [media] fimc-lite: Fix the variable type to avoid possible crash Sylwester Nawrocki
1 sibling, 0 replies; 4+ messages in thread
From: Shaik Ameer Basha @ 2013-02-21 11:54 UTC (permalink / raw)
To: linux-media; +Cc: s.nawrocki
v4l2_ctrl_new() uses check_range() for control range checking.
This function expects 'step' value for V4L2_CTRL_TYPE_BOOLEAN type control.
If 'step' value doesn't match to '1', it returns -ERANGE error.
This patch adds the default .step value to 1.
Signed-off-by: Shaik Ameer Basha <shaik.ameer@samsung.com>
---
drivers/media/platform/s5p-fimc/fimc-lite.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/media/platform/s5p-fimc/fimc-lite.c b/drivers/media/platform/s5p-fimc/fimc-lite.c
index bfc4206..bbc35de 100644
--- a/drivers/media/platform/s5p-fimc/fimc-lite.c
+++ b/drivers/media/platform/s5p-fimc/fimc-lite.c
@@ -1408,6 +1408,7 @@ static const struct v4l2_ctrl_config fimc_lite_ctrl = {
.id = V4L2_CTRL_CLASS_USER | 0x1001,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "Test Pattern 640x480",
+ .step = 1,
};
static int fimc_lite_create_capture_subdev(struct fimc_lite *fimc)
--
1.7.9.5
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] [media] fimc-lite: Fix the variable type to avoid possible crash
2013-02-21 11:54 [PATCH] [media] fimc-lite: Fix the variable type to avoid possible crash Shaik Ameer Basha
2013-02-21 11:54 ` [PATCH] [media] fimc-lite: Initialize 'step' field in fimc_lite_ctrl structure Shaik Ameer Basha
@ 2013-03-07 14:51 ` Sylwester Nawrocki
2013-03-08 6:07 ` Shaik Ameer Basha
1 sibling, 1 reply; 4+ messages in thread
From: Sylwester Nawrocki @ 2013-03-07 14:51 UTC (permalink / raw)
To: Shaik Ameer Basha; +Cc: linux-media
On 02/21/2013 12:54 PM, Shaik Ameer Basha wrote:
> Changing the variable type to 'int' from 'unsigned int'. Driver
> logic expects the variable type to be 'int'.
>
> Signed-off-by: Shaik Ameer Basha <shaik.ameer@samsung.com>
> ---
> drivers/media/platform/s5p-fimc/fimc-lite-reg.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/media/platform/s5p-fimc/fimc-lite-reg.c b/drivers/media/platform/s5p-fimc/fimc-lite-reg.c
> index f0af075..3c7dd65 100644
> --- a/drivers/media/platform/s5p-fimc/fimc-lite-reg.c
> +++ b/drivers/media/platform/s5p-fimc/fimc-lite-reg.c
> @@ -128,7 +128,7 @@ static const u32 src_pixfmt_map[8][3] = {
> void flite_hw_set_source_format(struct fimc_lite *dev, struct flite_frame *f)
> {
> enum v4l2_mbus_pixelcode pixelcode = dev->fmt->mbus_code;
> - unsigned int i = ARRAY_SIZE(src_pixfmt_map);
> + int i = ARRAY_SIZE(src_pixfmt_map);
> u32 cfg;
>
> while (i-- >= 0) {
> @@ -224,7 +224,7 @@ static void flite_hw_set_out_order(struct fimc_lite *dev, struct flite_frame *f)
> { V4L2_MBUS_FMT_VYUY8_2X8, FLITE_REG_CIODMAFMT_CRYCBY },
> };
> u32 cfg = readl(dev->regs + FLITE_REG_CIODMAFMT);
> - unsigned int i = ARRAY_SIZE(pixcode);
> + int i = ARRAY_SIZE(pixcode);
>
> while (i-- >= 0)
> if (pixcode[i][0] == dev->fmt->mbus_code)
>
There was a build warning like:
drivers/media/platform/s5p-fimc/fimc-lite-reg.c: In function ‘flite_hw_set_output_dma’:
drivers/media/platform/s5p-fimc/fimc-lite-reg.c:230: warning: array subscript is below array bounds
drivers/media/platform/s5p-fimc/fimc-lite-reg.c: In function ‘flite_hw_set_source_format’:
drivers/media/platform/s5p-fimc/fimc-lite-reg.c:135: warning: array subscript is below array bounds
thus I squashed following change before applying this patch:
diff --git a/drivers/media/platform/s5p-fimc/fimc-lite-reg.c b/drivers/media/platform/s5p-fimc/fimc-lite-reg.c
index 3c7dd65..ac9663c 100644
--- a/drivers/media/platform/s5p-fimc/fimc-lite-reg.c
+++ b/drivers/media/platform/s5p-fimc/fimc-lite-reg.c
@@ -131,7 +131,7 @@ void flite_hw_set_source_format(struct fimc_lite *dev, struct flite_frame *f)
int i = ARRAY_SIZE(src_pixfmt_map);
u32 cfg;
- while (i-- >= 0) {
+ while (--i >= 0) {
if (src_pixfmt_map[i][0] == pixelcode)
break;
}
@@ -226,7 +226,7 @@ static void flite_hw_set_out_order(struct fimc_lite *dev, struct flite_frame *f)
u32 cfg = readl(dev->regs + FLITE_REG_CIODMAFMT);
int i = ARRAY_SIZE(pixcode);
- while (i-- >= 0)
+ while (--i >= 0)
if (pixcode[i][0] == dev->fmt->mbus_code)
break;
cfg &= ~FLITE_REG_CIODMAFMT_YCBCR_ORDER_MASK;
--
Regards,
Sylwester
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] [media] fimc-lite: Fix the variable type to avoid possible crash
2013-03-07 14:51 ` [PATCH] [media] fimc-lite: Fix the variable type to avoid possible crash Sylwester Nawrocki
@ 2013-03-08 6:07 ` Shaik Ameer Basha
0 siblings, 0 replies; 4+ messages in thread
From: Shaik Ameer Basha @ 2013-03-08 6:07 UTC (permalink / raw)
To: Sylwester Nawrocki; +Cc: linux-media
On Thu, Mar 7, 2013 at 8:21 PM, Sylwester Nawrocki
<s.nawrocki@samsung.com> wrote:
> On 02/21/2013 12:54 PM, Shaik Ameer Basha wrote:
>> Changing the variable type to 'int' from 'unsigned int'. Driver
>> logic expects the variable type to be 'int'.
>>
>> Signed-off-by: Shaik Ameer Basha <shaik.ameer@samsung.com>
>> ---
>> drivers/media/platform/s5p-fimc/fimc-lite-reg.c | 4 ++--
>> 1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/media/platform/s5p-fimc/fimc-lite-reg.c b/drivers/media/platform/s5p-fimc/fimc-lite-reg.c
>> index f0af075..3c7dd65 100644
>> --- a/drivers/media/platform/s5p-fimc/fimc-lite-reg.c
>> +++ b/drivers/media/platform/s5p-fimc/fimc-lite-reg.c
>> @@ -128,7 +128,7 @@ static const u32 src_pixfmt_map[8][3] = {
>> void flite_hw_set_source_format(struct fimc_lite *dev, struct flite_frame *f)
>> {
>> enum v4l2_mbus_pixelcode pixelcode = dev->fmt->mbus_code;
>> - unsigned int i = ARRAY_SIZE(src_pixfmt_map);
>> + int i = ARRAY_SIZE(src_pixfmt_map);
>> u32 cfg;
>>
>> while (i-- >= 0) {
>> @@ -224,7 +224,7 @@ static void flite_hw_set_out_order(struct fimc_lite *dev, struct flite_frame *f)
>> { V4L2_MBUS_FMT_VYUY8_2X8, FLITE_REG_CIODMAFMT_CRYCBY },
>> };
>> u32 cfg = readl(dev->regs + FLITE_REG_CIODMAFMT);
>> - unsigned int i = ARRAY_SIZE(pixcode);
>> + int i = ARRAY_SIZE(pixcode);
>>
>> while (i-- >= 0)
>> if (pixcode[i][0] == dev->fmt->mbus_code)
>>
>
> There was a build warning like:
>
> drivers/media/platform/s5p-fimc/fimc-lite-reg.c: In function ‘flite_hw_set_output_dma’:
> drivers/media/platform/s5p-fimc/fimc-lite-reg.c:230: warning: array subscript is below array bounds
> drivers/media/platform/s5p-fimc/fimc-lite-reg.c: In function ‘flite_hw_set_source_format’:
> drivers/media/platform/s5p-fimc/fimc-lite-reg.c:135: warning: array subscript is below array bounds
>
> thus I squashed following change before applying this patch:
Thanks for that :)
-Shaik
>
> diff --git a/drivers/media/platform/s5p-fimc/fimc-lite-reg.c b/drivers/media/platform/s5p-fimc/fimc-lite-reg.c
> index 3c7dd65..ac9663c 100644
> --- a/drivers/media/platform/s5p-fimc/fimc-lite-reg.c
> +++ b/drivers/media/platform/s5p-fimc/fimc-lite-reg.c
> @@ -131,7 +131,7 @@ void flite_hw_set_source_format(struct fimc_lite *dev, struct flite_frame *f)
> int i = ARRAY_SIZE(src_pixfmt_map);
> u32 cfg;
>
> - while (i-- >= 0) {
> + while (--i >= 0) {
> if (src_pixfmt_map[i][0] == pixelcode)
> break;
> }
> @@ -226,7 +226,7 @@ static void flite_hw_set_out_order(struct fimc_lite *dev, struct flite_frame *f)
> u32 cfg = readl(dev->regs + FLITE_REG_CIODMAFMT);
> int i = ARRAY_SIZE(pixcode);
>
> - while (i-- >= 0)
> + while (--i >= 0)
> if (pixcode[i][0] == dev->fmt->mbus_code)
> break;
> cfg &= ~FLITE_REG_CIODMAFMT_YCBCR_ORDER_MASK;
>
> --
>
> Regards,
> Sylwester
> --
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^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2013-03-08 6:07 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-02-21 11:54 [PATCH] [media] fimc-lite: Fix the variable type to avoid possible crash Shaik Ameer Basha
2013-02-21 11:54 ` [PATCH] [media] fimc-lite: Initialize 'step' field in fimc_lite_ctrl structure Shaik Ameer Basha
2013-03-07 14:51 ` [PATCH] [media] fimc-lite: Fix the variable type to avoid possible crash Sylwester Nawrocki
2013-03-08 6:07 ` Shaik Ameer Basha
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