Herve Codina ff0312a156 i2c: muxes: i2c-demux-pinctrl: Use of_get_i2c_adapter_by_node() ... commit 0fb118de50 upstream. i2c-demux-pinctrl uses the pair of_find_i2c_adapter_by_node() / i2c_put_adapter(). These pair alone is not correct to properly lock the I2C parent adapter. Indeed, i2c_put_adapter() decrements the module refcount while of_find_i2c_adapter_by_node() does not increment it. This leads to an underflow of the parent module refcount. Use the dedicated function, of_get_i2c_adapter_by_node(), to handle correctly the module refcount. Fixes: 50a5ba8769 ("i2c: mux: demux-pinctrl: add driver") Signed-off-by: Herve Codina <herve.codina@bootlin.com> Cc: stable@vger.kernel.org Acked-by: Peter Rosin <peda@axentia.se> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Wolfram Sang <wsa@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-11-02 09:35:30 +01:00
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Kconfig	i2c: muxes: Drop obsolete dependency on COMPILE_TEST	2022-08-23 00:15:01 +02:00
Makefile	…
i2c-arb-gpio-challenge.c	i2c: muxes: i2c-arb-gpio-challenge: Demote non-conformant kernel-doc headers	2021-05-27 21:29:03 +02:00
i2c-demux-pinctrl.c	i2c: muxes: i2c-demux-pinctrl: Use of_get_i2c_adapter_by_node()	2023-11-02 09:35:30 +01:00
i2c-mux-gpio.c	i2c: mux: gpio: Add missing fwnode_handle_put()	2023-10-06 14:56:43 +02:00
i2c-mux-gpmux.c	i2c: muxes: i2c-mux-gpmux: Use of_get_i2c_adapter_by_node()	2023-11-02 09:35:30 +01:00
i2c-mux-ltc4306.c	i2c: Make remove callback return void	2022-08-16 12:46:26 +02:00
i2c-mux-mlxcpld.c	i2c: mux: mlxcpld: Add callback to notify mux creation completion	2021-02-09 11:35:44 +01:00
i2c-mux-pca954x.c	i2c: Make remove callback return void	2022-08-16 12:46:26 +02:00
i2c-mux-pca9541.c	i2c: Make remove callback return void	2022-08-16 12:46:26 +02:00
i2c-mux-pinctrl.c	i2c: muxes: i2c-mux-pinctrl: Use of_get_i2c_adapter_by_node()	2023-11-02 09:35:30 +01:00
i2c-mux-reg.c	i2c: mux: reg: check return value after calling platform_get_resource()	2022-12-31 13:32:42 +01:00