From b0c1e95ab44feaad8831f2c06a3473c974003b49 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Tue, 28 Feb 2017 11:10:51 -0800 Subject: [PATCH] i2c: copy device properties when using i2c_register_board_info() This will allow marking device property lists as __initdata, the same as board info structures themselves. Signed-off-by: Dmitry Torokhov Signed-off-by: Wolfram Sang --- drivers/i2c/i2c-boardinfo.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/i2c/i2c-boardinfo.c b/drivers/i2c/i2c-boardinfo.c index 6e5fac6a5262..5b8f6c3a6950 100644 --- a/drivers/i2c/i2c-boardinfo.c +++ b/drivers/i2c/i2c-boardinfo.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include @@ -55,6 +56,7 @@ EXPORT_SYMBOL_GPL(__i2c_first_dynamic_bus_num); * * The board info passed can safely be __initdata, but be careful of embedded * pointers (for platform_data, functions, etc) since that won't be copied. + * Device properties are deep-copied though. */ int i2c_register_board_info(int busnum, struct i2c_board_info const *info, unsigned len) { @@ -78,6 +80,14 @@ int i2c_register_board_info(int busnum, struct i2c_board_info const *info, unsig devinfo->busnum = busnum; devinfo->board_info = *info; + + if (info->properties) { + devinfo->board_info.properties = + property_entries_dup(info->properties); + if (IS_ERR(devinfo->board_info.properties)) + return PTR_ERR(devinfo->board_info.properties); + } + list_add_tail(&devinfo->list, &__i2c_board_list); } -- 2.30.2