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openwrt/package/kernel/i2c-gpio-custom/Makefile
Sungbo Eo a22b7a60d9 kernel: fix *-gpio-custom module unloading
Unloading and reloading the modules fails, as platform_device_put() does not
release resources fully.

root@OpenWrt:/# insmod i2c-gpio-custom bus0=0,18,0,5
[  196.860620] Custom GPIO-based I2C driver version 0.1.1
[  196.871162] ------------[ cut here ]------------
[  196.880517] WARNING: CPU: 0 PID: 1365 at fs/sysfs/dir.c:31 0x80112158
[  196.893431] sysfs: cannot create duplicate filename '/devices/platform/i2c-gpio.0'
...
[  197.513200] kobject_add_internal failed for i2c-gpio.0 with -EEXIST, don't try to register things with the same name in the same directory.

This patch fixes it by replacing platform_device_put() to
platform_device_unregister().

Fixes: da77408537 ("i2c-gpio-custom: minor bugfix")
Fixes: 3bc81edc70 ("package: fix w1-gpio-custom package (closes #6770)")

Signed-off-by: Sungbo Eo <mans0n@gorani.run>
2019-12-23 00:22:07 +01:00

48 lines
1.1 KiB
Makefile

#
# Copyright (C) 2008 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
include $(TOPDIR)/rules.mk
include $(INCLUDE_DIR)/kernel.mk
PKG_NAME:=i2c-gpio-custom
PKG_RELEASE:=3
include $(INCLUDE_DIR)/package.mk
define KernelPackage/i2c-gpio-custom
SUBMENU:=I2C support
TITLE:=Custom GPIO-based I2C device
DEPENDS:=@GPIO_SUPPORT +kmod-i2c-core +kmod-i2c-gpio @!LINUX_4_19
FILES:=$(PKG_BUILD_DIR)/i2c-gpio-custom.ko
KCONFIG:=
endef
define KernelPackage/i2c-gpio-custom/description
Kernel module for register a custom i2c-gpio platform device.
endef
EXTRA_KCONFIG:= \
CONFIG_I2C_GPIO_CUSTOM=m
EXTRA_CFLAGS:= \
$(patsubst CONFIG_%, -DCONFIG_%=1, $(patsubst %=m,%,$(filter %=m,$(EXTRA_KCONFIG)))) \
$(patsubst CONFIG_%, -DCONFIG_%=1, $(patsubst %=y,%,$(filter %=y,$(EXTRA_KCONFIG)))) \
MAKE_OPTS:= \
$(KERNEL_MAKE_FLAGS) \
SUBDIRS="$(PKG_BUILD_DIR)" \
EXTRA_CFLAGS="$(EXTRA_CFLAGS)" \
$(EXTRA_KCONFIG)
define Build/Compile
$(MAKE) -C "$(LINUX_DIR)" \
$(MAKE_OPTS) \
modules
endef
$(eval $(call KernelPackage,i2c-gpio-custom))