[PATCH 1/2] x86 platform drivers, wmi: Remove needless dmi MODULE_ALIAS

[PATCH 1/2] x86 platform drivers, wmi: Remove needless dmi MODULE_ALIAS

[Thomas Renninger]

wmi autoloading came in, so the dmi matching for autoloading
is not needed anymore.

CC: Carlos Corbacho <carlos@strangeworlds.co.uk>
CC: Matthew Garrett <mjg59@srcf.ucam.org>
CC: linux-acpi@vger.kernel.org
CC: Len Brown <lenb@kernel.org>

Signed-off-by: Thomas Renninger <trenn@suse.de>
---
 drivers/platform/x86/acer-wmi.c |    3 ---
 drivers/platform/x86/msi-wmi.c  |   10 ----------
 2 files changed, 0 insertions(+), 13 deletions(-)

diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index 454970d..07d14df 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -96,9 +96,6 @@ struct acer_quirks {
 MODULE_ALIAS("wmi:67C3371D-95A3-4C37-BB61-DD47B491DAAB");
 MODULE_ALIAS("wmi:6AF4F258-B401-42fd-BE91-3D4AC2D7C0D3");
 
-/* Temporary workaround until the WMI sysfs interface goes in */
-MODULE_ALIAS("dmi:*:*Acer*:*:");
-
 /*
  * Interface capability flags
  */
diff --git a/drivers/platform/x86/msi-wmi.c b/drivers/platform/x86/msi-wmi.c
index 0c8fe14..7f77f90 100644
--- a/drivers/platform/x86/msi-wmi.c
+++ b/drivers/platform/x86/msi-wmi.c
@@ -34,16 +34,6 @@ MODULE_LICENSE("GPL");
 MODULE_ALIAS("wmi:551A1F84-FBDD-4125-91DB-3EA8F44F1D45");
 MODULE_ALIAS("wmi:B6F3EEF2-3D2F-49DC-9DE3-85BCE18C62F2");
 
-/* Temporary workaround until the WMI sysfs interface goes in
-		{ "svn", DMI_SYS_VENDOR },
-		{ "pn",  DMI_PRODUCT_NAME },
-		{ "pvr", DMI_PRODUCT_VERSION },
-		{ "rvn", DMI_BOARD_VENDOR },
-		{ "rn",  DMI_BOARD_NAME },
-*/
-
-MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-6638:*");
-
 #define DRV_NAME "msi-wmi"
 #define DRV_PFX DRV_NAME ": "
 
-- 
1.6.3

[PATCH 2/2] x86 platform drivers, hp-wmi: Fix two memleaks

[Thomas Renninger]

CC: Carlos Corbacho <carlos@strangeworlds.co.uk>
CC: Matthew Garrett <mjg59@srcf.ucam.org>
CC: linux-acpi@vger.kernel.org
CC: Len Brown <lenb@kernel.org>

Signed-off-by: Thomas Renninger <trenn@suse.de>
---
 drivers/platform/x86/hp-wmi.c |   10 +++++++++-
 1 files changed, 9 insertions(+), 1 deletions(-)

diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c
index 63c3e65..01a0913 100644
--- a/drivers/platform/x86/hp-wmi.c
+++ b/drivers/platform/x86/hp-wmi.c
@@ -134,10 +134,15 @@ static int hp_wmi_perform_query(int query, int write, int value)
 
 	obj = output.pointer;
 
-	if (!obj || obj->type != ACPI_TYPE_BUFFER)
+	if (!obj)
 		return -EINVAL;
+	else if (obj->type != ACPI_TYPE_BUFFER) {
+		kfree(obj);
+		return -EINVAL;
+	}
 
 	bios_return = *((struct bios_return *)obj->buffer.pointer);
+	kfree(obj);
 	if (bios_return.return_code > 0)
 		return bios_return.return_code * -1;
 	else
@@ -340,10 +345,13 @@ static void hp_wmi_notify(u32 value, void *context)
 
 	if (!obj || obj->type != ACPI_TYPE_BUFFER || obj->buffer.length != 8) {
 		printk(KERN_INFO "HP WMI: Unknown response received\n");
+		if (obj)
+			kfree(obj);
 		return;
 	}
 
 	eventcode = *((u8 *) obj->buffer.pointer);
+	kfree(obj);
 	if (eventcode == 0x4)
 		eventcode = hp_wmi_perform_query(HPWMI_HOTKEY_QUERY, 0,
 						0);
-- 
1.6.3

Re: [PATCH 2/2] x86 platform drivers, hp-wmi: Fix two memleaks

[Len Brown]

thanks,
Len Brown, Intel Open Source Technology Center

On Fri, 18 Dec 2009, Thomas Renninger wrote:

> CC: Carlos Corbacho <carlos@strangeworlds.co.uk>
> CC: Matthew Garrett <mjg59@srcf.ucam.org>
> CC: linux-acpi@vger.kernel.org
> CC: Len Brown <lenb@kernel.org>
> 
> Signed-off-by: Thomas Renninger <trenn@suse.de>
> ---
>  drivers/platform/x86/hp-wmi.c |   10 +++++++++-
>  1 files changed, 9 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c
> index 63c3e65..01a0913 100644
> --- a/drivers/platform/x86/hp-wmi.c
> +++ b/drivers/platform/x86/hp-wmi.c
> @@ -134,10 +134,15 @@ static int hp_wmi_perform_query(int query, int write, int value)
>  
>  	obj = output.pointer;
>  
> -	if (!obj || obj->type != ACPI_TYPE_BUFFER)
> +	if (!obj)
>  		return -EINVAL;
> +	else if (obj->type != ACPI_TYPE_BUFFER) {
> +		kfree(obj);
> +		return -EINVAL;
> +	}
>  
>  	bios_return = *((struct bios_return *)obj->buffer.pointer);
> +	kfree(obj);
>  	if (bios_return.return_code > 0)
>  		return bios_return.return_code * -1;
>  	else
> @@ -340,10 +345,13 @@ static void hp_wmi_notify(u32 value, void *context)
>  
>  	if (!obj || obj->type != ACPI_TYPE_BUFFER || obj->buffer.length != 8) {
>  		printk(KERN_INFO "HP WMI: Unknown response received\n");
> +		if (obj)
> +			kfree(obj);

WARNING: kfree(NULL) is safe this check is probably not required
#44: FILE: drivers/platform/x86/hp-wmi.c:349:
+		if (obj)
+			kfree(obj);

so I deleted "if(obj)" above and applied the patch.

thanks,
Len Brown, Intel Open Source Technology Center

>  		return;
>  	}
>  
>  	eventcode = *((u8 *) obj->buffer.pointer);
> +	kfree(obj);
>  	if (eventcode == 0x4)
>  		eventcode = hp_wmi_perform_query(HPWMI_HOTKEY_QUERY, 0,
>  						0);
> -- 

Re: [PATCH 1/2] x86 platform drivers, wmi: Remove needless dmi MODULE_ALIAS

[Carlos Corbacho]

On Friday 18 December 2009 14:29:22 Thomas Renninger wrote:
> wmi autoloading came in, so the dmi matching for autoloading
> is not needed anymore.
> 
> CC: Carlos Corbacho <carlos@strangeworlds.co.uk>
> CC: Matthew Garrett <mjg59@srcf.ucam.org>
> CC: linux-acpi@vger.kernel.org
> CC: Len Brown <lenb@kernel.org>
> 
> Signed-off-by: Thomas Renninger <trenn@suse.de>

For acer-wmi:

Acked-by: Carlos Corbacho <carlos@strangeworlds.co.uk>

-- 
E-Mail: carlos@strangeworlds.co.uk
Web: strangeworlds.co.uk
GPG Key ID: 0x23EE722D

Re: [PATCH 1/2] x86 platform drivers, wmi: Remove needless dmi MODULE_ALIAS

[Anisse Astier]

On Fri, 18 Dec 2009 15:29:22 +0100, Thomas Renninger <trenn@suse.de> wrote :

> wmi autoloading came in, so the dmi matching for autoloading
> is not needed anymore.
> 

For this to work properly you need to have wmi built in your kernel, or have
your distribution load the wmi module. Maybe there should be some kind of
auto-loading for the wmi subsystem (acpi-based?).

Anyway, that's out of the scope of this patch, which was the plan all-along.

FWIW, and for msi-wmi :
Acked-by: Anisse Astier <anisse@astier.eu>

Regards,

Anisse

Re: [PATCH 1/2] x86 platform drivers, wmi: Remove needless dmi MODULE_ALIAS

[Matthew Garrett]

On Fri, Dec 18, 2009 at 06:44:58PM +0100, Anisse Astier wrote:

> For this to work properly you need to have wmi built in your kernel, or have
> your distribution load the wmi module. Maybe there should be some kind of
> auto-loading for the wmi subsystem (acpi-based?).

[mjg59@2530p ~]$ modinfo wmi | grep alias
alias:          acpi*:pnp0c14:*
alias:          acpi*:PNP0C14:*

Should work already.

-- 
Matthew Garrett | mjg59@srcf.ucam.org

Re: [PATCH 1/2] x86 platform drivers, wmi: Remove needless dmi MODULE_ALIAS

[Anisse Astier]

On Fri, Dec 18, 2009 at 18:54, Matthew Garrett <mjg59@srcf.ucam.org> wrote:
> On Fri, Dec 18, 2009 at 06:44:58PM +0100, Anisse Astier wrote:
>
>> For this to work properly you need to have wmi built in your kernel, or have
>> your distribution load the wmi module. Maybe there should be some kind of
>> auto-loading for the wmi subsystem (acpi-based?).
>
> [mjg59@2530p ~]$ modinfo wmi | grep alias
> alias:          acpi*:pnp0c14:*
> alias:          acpi*:PNP0C14:*
>
> Should work already.
>

Indeed, it does, my mistake.

I completely forgot about those lines. In fact, the reason I started
hacking on msi-wmi (the previous driver), was because it didn't have a
proper auto-loading, and thus we packaged it out of kernel tree.

It was using dmi auto-loading with those standard wmi strings (pnp0c14).

Regards,

--
Anisse
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Re: [PATCH 1/2] x86 platform drivers, wmi: Remove needless dmi MODULE_ALIAS

[Len Brown]

applied

thanks,
Len Brown, Intel Open Source Technology Center