Re: [PATCH 2/7] staging: atomisp: Do not call dev_warn with a NULL device

[Andy Shevchenko]

On Sun, May 28, 2017 at 3:31 PM, Hans de Goede  wrote:
> Do not call dev_warn with a NULL device, this silence the following 2
> warnings:
>
> [   14.392194] (NULL device *): Failed to find gmin variable gmin_V2P8GPIO
> [   14.392257] (NULL device *): Failed to find gmin variable gmin_V1P8GPIO
>
> We could switch to using pr_warn for dev == NULL instead, but as comments
> in the source indicate, the check for these 2 special gmin variables with
> a NULL device is a workaround for 2 specific evaluation boards, so
> completely silencing the missing warning for these actually is a good
> thing.

Perhaps removing all code related explicitly to Gmin is a right thing to do.


-- 
With Best Regards,
Andy Shevchenko

[PATCH 2/7] staging: atomisp: Do not call dev_warn with a NULL device

[Hans de Goede]

Do not call dev_warn with a NULL device, this silence the following 2
warnings:

[   14.392194] (NULL device *): Failed to find gmin variable gmin_V2P8GPIO
[   14.392257] (NULL device *): Failed to find gmin variable gmin_V1P8GPIO

We could switch to using pr_warn for dev == NULL instead, but as comments
in the source indicate, the check for these 2 special gmin variables with
a NULL device is a workaround for 2 specific evaluation boards, so
completely silencing the missing warning for these actually is a good
thing.

Signed-off-by: Hans de Goede 
---
 .../staging/media/atomisp/platform/intel-mid/atomisp_gmin_platform.c| 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git 
a/drivers/staging/media/atomisp/platform/intel-mid/atomisp_gmin_platform.c 
b/drivers/staging/media/atomisp/platform/intel-mid/atomisp_gmin_platform.c
index 104fea2f8697..3fea81ea5dbd 100644
--- a/drivers/staging/media/atomisp/platform/intel-mid/atomisp_gmin_platform.c
+++ b/drivers/staging/media/atomisp/platform/intel-mid/atomisp_gmin_platform.c
@@ -689,7 +689,7 @@ int gmin_get_config_var(struct device *dev, const char 
*var, char *out, size_t *
if (ret == 0) {
memcpy(out, ev->var.Data, ev->var.DataSize);
*out_len = ev->var.DataSize;
-   } else {
+   } else if (dev) {
dev_warn(dev, "Failed to find gmin variable %s\n", var8);
}
 
-- 
2.13.0