From 291f653a140ad880426125e5e9dbb70f4c184683 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Tue, 28 Oct 2014 17:40:42 +0100 Subject: [PATCH] core: platform: let platform_create_bundle initialize module owner Since commit 9447057eaff8 ("platform_device: use a macro instead of platform_driver_register"), platform_driver_register() always overwrites the .owner field of a platform_driver with THIS_MODULE. This breaks platform_create_bundle() which uses it via platform_driver_probe() from within the platform core instead of the module init. Fix it by using a similar #define construct to obtain THIS_MODULE and pass it on later. Reported-by: Russell King Signed-off-by: Wolfram Sang Signed-off-by: Greg Kroah-Hartman --- drivers/base/platform.c | 11 ++++++----- include/linux/platform_device.h | 6 ++++-- 2 files changed, 10 insertions(+), 7 deletions(-) diff --git a/drivers/base/platform.c b/drivers/base/platform.c index c87a63326871..cdb6c076c3f7 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -637,24 +637,25 @@ int __init_or_module __platform_driver_probe(struct platform_driver *drv, EXPORT_SYMBOL_GPL(__platform_driver_probe); /** - * platform_create_bundle - register driver and create corresponding device + * __platform_create_bundle - register driver and create corresponding device * @driver: platform driver structure * @probe: the driver probe routine, probably from an __init section * @res: set of resources that needs to be allocated for the device * @n_res: number of resources * @data: platform specific data for this platform device * @size: size of platform specific data + * @module: module which will be the owner of the driver * * Use this in legacy-style modules that probe hardware directly and * register a single platform device and corresponding platform driver. * * Returns &struct platform_device pointer on success, or ERR_PTR() on error. */ -struct platform_device * __init_or_module platform_create_bundle( +struct platform_device * __init_or_module __platform_create_bundle( struct platform_driver *driver, int (*probe)(struct platform_device *), struct resource *res, unsigned int n_res, - const void *data, size_t size) + const void *data, size_t size, struct module *module) { struct platform_device *pdev; int error; @@ -677,7 +678,7 @@ struct platform_device * __init_or_module platform_create_bundle( if (error) goto err_pdev_put; - error = platform_driver_probe(driver, probe); + error = __platform_driver_probe(driver, probe, module); if (error) goto err_pdev_del; @@ -690,7 +691,7 @@ err_pdev_put: err_out: return ERR_PTR(error); } -EXPORT_SYMBOL_GPL(platform_create_bundle); +EXPORT_SYMBOL_GPL(__platform_create_bundle); /* modalias support enables more hands-off userspace setup: * (a) environment variable lets new-style hotplug events work once system is diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h index c8d95c60da19..ae4882ca4a64 100644 --- a/include/linux/platform_device.h +++ b/include/linux/platform_device.h @@ -240,10 +240,12 @@ static void __exit __platform_driver##_exit(void) \ } \ module_exit(__platform_driver##_exit); -extern struct platform_device *platform_create_bundle( +#define platform_create_bundle(driver, probe, res, n_res, data, size) \ + __platform_create_bundle(driver, probe, res, n_res, data, size, THIS_MODULE) +extern struct platform_device *__platform_create_bundle( struct platform_driver *driver, int (*probe)(struct platform_device *), struct resource *res, unsigned int n_res, - const void *data, size_t size); + const void *data, size_t size, struct module *module); /* early platform driver interface */ struct early_platform_driver { -- 2.20.1