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; }
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
Hi,
On 12/22/21 11:50, 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
Thank you for your patch, I've applied this patch to my review-hans branch: https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.g...
Note it will show up in my review-hans branch once I've pushed my local branch there, which might take a while.
Once I've run some tests on this branch the patches there will be added to the platform-drivers-x86/for-next branch and eventually will be included in the pdx86 pull-request to Linus for the next merge-window.
Regards,
Hans
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; }
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