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authorManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>2020-03-24 11:40:44 +0530
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-03-24 13:45:24 +0100
commit821747386cb6cd75593a8854208b8af188b4caed (patch)
treeefd8c7a53efee176890bfe54e28e924568a54104 /drivers/bus
parent8622dfefb6ac333c58d354331d1bf78a2927ce51 (diff)
downloadlinux-821747386cb6cd75593a8854208b8af188b4caed.tar.bz2
bus: mhi: core: Pass module owner during client driver registration
The module owner field can be used to prevent the removal of kernel modules when there are any device files associated with it opened in userspace. Hence, modify the API to pass module owner field. For convenience, module_mhi_driver() macro is used which takes care of passing the module owner through THIS_MODULE of the module of the driver and also avoiding the use of specifying the default MHI client driver register/unregister routines. Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20200324061050.14845-2-manivannan.sadhasivam@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/bus')
-rw-r--r--drivers/bus/mhi/core/init.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/bus/mhi/core/init.c b/drivers/bus/mhi/core/init.c
index 5fb756ca335e..eb7f556a8531 100644
--- a/drivers/bus/mhi/core/init.c
+++ b/drivers/bus/mhi/core/init.c
@@ -1189,7 +1189,7 @@ static int mhi_driver_remove(struct device *dev)
return 0;
}
-int mhi_driver_register(struct mhi_driver *mhi_drv)
+int __mhi_driver_register(struct mhi_driver *mhi_drv, struct module *owner)
{
struct device_driver *driver = &mhi_drv->driver;
@@ -1197,12 +1197,13 @@ int mhi_driver_register(struct mhi_driver *mhi_drv)
return -EINVAL;
driver->bus = &mhi_bus_type;
+ driver->owner = owner;
driver->probe = mhi_driver_probe;
driver->remove = mhi_driver_remove;
return driver_register(driver);
}
-EXPORT_SYMBOL_GPL(mhi_driver_register);
+EXPORT_SYMBOL_GPL(__mhi_driver_register);
void mhi_driver_unregister(struct mhi_driver *mhi_drv)
{