Tony Lindgren c0a480d1ac device property: Fix usecount for of_graph_get_port_parent() ... Fix inconsistent use of of_graph_get_port_parent() where asoc_simple_card_parse_graph_dai() does of_node_get() before calling it while other callers do not. We can fix this by not trashing the node passed to of_graph_get_port_parent(). Let's also make sure the callers have correct refcounts and remove related incorrect of_node_put() calls for of_for_each_phandle as that's done by of_phandle_iterator_next() except when we break out of the loop early. Let's fix both issues with a single patch to avoid kobject refcounts getting messed up more if two patches are merged separately. Otherwise strange issues can happen caused by memory corruption caused by too many kobject_del() calls such as: BUG: sleeping function called from invalid context at kernel/locking/mutex.c:747 ... (___might_sleep) (__mutex_lock) (mutex_lock_nested) (kernfs_remove) (kobject_del) (kobject_put) (of_get_next_parent) (of_graph_get_port_parent) (asoc_simple_card_parse_graph_dai [snd_soc_simple_card_utils]) (asoc_graph_card_probe [snd_soc_audio_graph_card]) Fixes: 0ef472a973 ("of_graph: add of_graph_get_port_parent()") Fixes: 2692c1c63c ("ASoC: add audio-graph-card support") Fixes: 1689333f83 ("ASoC: simple-card-utils: add asoc_simple_card_parse_graph_dai()") Signed-off-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Rob Herring <robh@kernel.org> Tested-by: Antonio Borneo <borneo.antonio@gmail.com> Tested-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>		2017-08-01 15:15:42 +01:00
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audio-graph-card.c	device property: Fix usecount for of_graph_get_port_parent()	2017-08-01 15:15:42 +01:00
audio-graph-scu-card.c	device property: Fix usecount for of_graph_get_port_parent()	2017-08-01 15:15:42 +01:00
Kconfig	ASoC: add audio-graph-scu-card support	2017-05-29 14:49:09 +01:00
Makefile	ASoC: add audio-graph-scu-card support	2017-05-29 14:49:09 +01:00
simple-card-utils.c	device property: Fix usecount for of_graph_get_port_parent()	2017-08-01 15:15:42 +01:00
simple-card.c	Merge remote-tracking branches 'asoc/topic/msm8916', 'asoc/topic/mtk', 'asoc/topic/nau8824', 'asoc/topic/nau8825' and 'asoc/topic/of-graph' into asoc-next	2017-07-03 16:15:12 +01:00
simple-scu-card.c	ASoC: simple-scu-card: use asoc_simple_card_of_parse_routing()	2017-06-15 18:15:03 +01:00