diff mbox series

[5.15,021/177] usb: gadget: configfs: clear deactivation flag in configfs_composite_unbind()

Message ID 20220504153055.166161977@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

gregkh@linuxfoundation.org May 4, 2022, 4:43 p.m. UTC 
From: Vijayavardhan Vennapusa <vvreddy@codeaurora.org>

commit bf95c4d4630c7a2c16e7b424fdea5177d9ce0864 upstream.

If any function like UVC is deactivating gadget as part of composition
switch which results in not calling pullup enablement, it is not getting
enabled after switch to new composition due to this deactivation flag
not cleared. This results in USB enumeration not happening after switch
to new USB composition. Hence clear deactivation flag inside gadget
structure in configfs_composite_unbind() before switch to new USB
composition.

Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org>
Signed-off-by: Dan Vacura <w36195@motorola.com>
Cc: stable <stable@kernel.org>
Link: https://lore.kernel.org/r/20220413211038.72797-1-w36195@motorola.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/gadget/configfs.c |    2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

--- a/drivers/usb/gadget/configfs.c
+++ b/drivers/usb/gadget/configfs.c
@@ -1447,6 +1447,8 @@  static void configfs_composite_unbind(st
 	usb_ep_autoconfig_reset(cdev->gadget);
 	spin_lock_irqsave(&gi->spinlock, flags);
 	cdev->gadget = NULL;
+	cdev->deactivations = 0;
+	gadget->deactivated = false;
 	set_gadget_data(gadget, NULL);
 	spin_unlock_irqrestore(&gi->spinlock, flags);
 }