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usb: gadget: configfs: make sure to reactivate function on unbind

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If a configs function sets bind_deactivated flag, upon removal it will be
left with an unbalanced deactivation. Let's make sure that we conditionally
call usb_function_activate() from purge_configs_funcs() and make sure
purge_configs_funcs() is called from configfs_composite_unbind().

Change-Id: Ibe91837fdb7754f8af343a18138556901a0e089f
Signed-off-by: William Wu <william.wu@rock-chips.com>
This commit is contained in:
William Wu
2020-02-28 18:39:28 +08:00
committed by Tao Huang
parent 2686202448
commit d22ee08595
1 changed files with 3 additions and 0 deletions
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3
drivers/usb/gadget/configfs.c
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@@ -1254,6 +1254,9 @@ static void purge_configs_funcs(struct gadget_info *gi)
f->name, f);
f->unbind(c, f);
}
if (f->bind_deactivated)
usb_function_activate(f);
}
c->next_interface_id = 0;
memset(c->interface, 0, sizeof(c->interface));