diff mbox series

platform/x86: intel_pmc_core: fix memleak on registration failure

Message ID 20211222105023.6205-1-johan@kernel.org
State Accepted
Commit 26a8b09437804fabfb1db080d676b96c0de68e7c
Headers show
Series platform/x86: intel_pmc_core: fix memleak on registration failure | expand

Commit Message

Johan Hovold Dec. 22, 2021, 10:50 a.m. UTC
In case device registration fails during module initialisation, the
platform device structure needs to be freed using platform_device_put()
to properly free all resources (e.g. the device name).

Fixes: 938835aa903a ("platform/x86: intel_pmc_core: do not create a static struct device")
Cc: stable@vger.kernel.org      # 5.9
Signed-off-by: Johan Hovold <johan@kernel.org>
---
 drivers/platform/x86/intel/pmc/pltdrv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Greg KH Dec. 22, 2021, 11:05 a.m. UTC | #1
On Wed, Dec 22, 2021 at 11:50:23AM +0100, Johan Hovold wrote:
> In case device registration fails during module initialisation, the
> platform device structure needs to be freed using platform_device_put()
> to properly free all resources (e.g. the device name).
> 
> Fixes: 938835aa903a ("platform/x86: intel_pmc_core: do not create a static struct device")
> Cc: stable@vger.kernel.org      # 5.9
> Signed-off-by: Johan Hovold <johan@kernel.org>
> ---
>  drivers/platform/x86/intel/pmc/pltdrv.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/platform/x86/intel/pmc/pltdrv.c b/drivers/platform/x86/intel/pmc/pltdrv.c
> index 73797680b895..15ca8afdd973 100644
> --- a/drivers/platform/x86/intel/pmc/pltdrv.c
> +++ b/drivers/platform/x86/intel/pmc/pltdrv.c
> @@ -65,7 +65,7 @@ static int __init pmc_core_platform_init(void)
>  
>  	retval = platform_device_register(pmc_core_device);
>  	if (retval)
> -		kfree(pmc_core_device);
> +		platform_device_put(pmc_core_device);
>  
>  	return retval;
>  }
> -- 
> 2.32.0
> 

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff mbox series

Patch

diff --git a/drivers/platform/x86/intel/pmc/pltdrv.c b/drivers/platform/x86/intel/pmc/pltdrv.c
index 73797680b895..15ca8afdd973 100644
--- a/drivers/platform/x86/intel/pmc/pltdrv.c
+++ b/drivers/platform/x86/intel/pmc/pltdrv.c
@@ -65,7 +65,7 @@  static int __init pmc_core_platform_init(void)
 
 	retval = platform_device_register(pmc_core_device);
 	if (retval)
-		kfree(pmc_core_device);
+		platform_device_put(pmc_core_device);
 
 	return retval;
 }