ASoC: topology: Add missing rwsem around snd_ctl_remove() calls

stable inclusion
from stable-v5.10.83
commit 3a25def06de8061ade6006e4295fa83c14cee8e8
bugzilla: 185879 https://gitee.com/openeuler/kernel/issues/I4QUVG

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=3a25def06de8061ade6006e4295fa83c14cee8e8

--------------------------------

[ Upstream commit 7e567b5a ]

snd_ctl_remove() has to be called with card->controls_rwsem held (when
called after the card instantiation).  This patch add the missing
rwsem calls around it.

Fixes: 8a978234 ("ASoC: topology: Add topology core")
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20211116071812.18109-1-tiwai@suse.deSigned-off-by: NMark Brown <broonie@kernel.org>
Signed-off-by: NSasha Levin <sashal@kernel.org>
Signed-off-by: NChen Jun <chenjun102@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

sound/soc/soc-topology.c

@@ -2873,6 +2873,7 @@ EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove_all);
 /* remove dynamic controls from the component driver */
 int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index)
 {
+	struct snd_card *card = comp->card->snd_card;
 	struct snd_soc_dobj *dobj, *next_dobj;
 	int pass = SOC_TPLG_PASS_END;
 
@@ -2880,6 +2881,7 @@ int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index)
 	while (pass >= SOC_TPLG_PASS_START) {
 
 		/* remove mixer controls */
+		down_write(&card->controls_rwsem);
 		list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list,
 			list) {
 
@@ -2923,6 +2925,7 @@ int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index)
 				break;
 			}
 		}
+		up_write(&card->controls_rwsem);
 		pass--;
 	}