* [PATCH v1 1/1] media: atomisp_gmin_platform: Switch to use acpi_evaluate_dsm_typed()
@ 2022-07-15 16:06 Andy Shevchenko
2022-07-17 8:42 ` Sakari Ailus
0 siblings, 1 reply; 2+ messages in thread
From: Andy Shevchenko @ 2022-07-15 16:06 UTC (permalink / raw)
To: Mauro Carvalho Chehab, Hans de Goede, linux-media, linux-staging,
linux-kernel
Cc: Sakari Ailus, Greg Kroah-Hartman, Andy Shevchenko
The acpi_evaluate_dsm_typed() provides a way to check the type of the
object evaluated by _DSM call. Use it instead of open coded variant.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c b/drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c
index bf527b366ab3..d4cfda07f7fb 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c
@@ -1207,16 +1207,13 @@ static int gmin_get_config_dsm_var(struct device *dev,
if (!strcmp(var, "CamClk"))
return -EINVAL;
- obj = acpi_evaluate_dsm(handle, &atomisp_dsm_guid, 0, 0, NULL);
+ /* Return on unexpected object type */
+ obj = acpi_evaluate_dsm_typed(handle, &atomisp_dsm_guid, 0, 0, NULL, ACPI_TYPE_PACKAGE);
if (!obj) {
dev_info_once(dev, "Didn't find ACPI _DSM table.\n");
return -EINVAL;
}
- /* Return on unexpected object type */
- if (obj->type != ACPI_TYPE_PACKAGE)
- return -EINVAL;
-
#if 0 /* Just for debugging purposes */
for (i = 0; i < obj->package.count; i++) {
union acpi_object *cur = &obj->package.elements[i];
--
2.35.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH v1 1/1] media: atomisp_gmin_platform: Switch to use acpi_evaluate_dsm_typed()
2022-07-15 16:06 [PATCH v1 1/1] media: atomisp_gmin_platform: Switch to use acpi_evaluate_dsm_typed() Andy Shevchenko
@ 2022-07-17 8:42 ` Sakari Ailus
0 siblings, 0 replies; 2+ messages in thread
From: Sakari Ailus @ 2022-07-17 8:42 UTC (permalink / raw)
To: Andy Shevchenko
Cc: Mauro Carvalho Chehab, Hans de Goede, linux-media, linux-staging,
linux-kernel, Sakari Ailus, Greg Kroah-Hartman
Hi Andy,
On Fri, Jul 15, 2022 at 07:06:41PM +0300, Andy Shevchenko wrote:
> The acpi_evaluate_dsm_typed() provides a way to check the type of the
> object evaluated by _DSM call. Use it instead of open coded variant.
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> ---
> drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c | 7 ++-----
> 1 file changed, 2 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c b/drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c
> index bf527b366ab3..d4cfda07f7fb 100644
> --- a/drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c
> +++ b/drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c
> @@ -1207,16 +1207,13 @@ static int gmin_get_config_dsm_var(struct device *dev,
> if (!strcmp(var, "CamClk"))
> return -EINVAL;
>
> - obj = acpi_evaluate_dsm(handle, &atomisp_dsm_guid, 0, 0, NULL);
> + /* Return on unexpected object type */
> + obj = acpi_evaluate_dsm_typed(handle, &atomisp_dsm_guid, 0, 0, NULL, ACPI_TYPE_PACKAGE);
Can you please run:
$ ./scripts/checkpatch.pl --strict --max-line-length=80
I.e. the preferred line length is 80 or less, unless there are other
reasons to keep it longer.
> if (!obj) {
> dev_info_once(dev, "Didn't find ACPI _DSM table.\n");
> return -EINVAL;
> }
>
> - /* Return on unexpected object type */
> - if (obj->type != ACPI_TYPE_PACKAGE)
> - return -EINVAL;
> -
> #if 0 /* Just for debugging purposes */
> for (i = 0; i < obj->package.count; i++) {
> union acpi_object *cur = &obj->package.elements[i];
--
Kind regards,
Sakari Ailus
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