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nfc: pn533: properly drop the usb interface reference on disconnect

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When the device is disconnected from the driver, there is a "dangling"
reference count on the usb interface that was grabbed in the probe
callback.  Fix this up by properly dropping the reference after we are
done with it.

Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Fixes: c46ee38620 ("NFC: pn533: add NXP pn533 nfc device driver")
Link: https://patch.msgid.link/2026022329-flashing-ought-7573@gregkh
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Greg Kroah-Hartman
2026-02-23 12:28:30 +01:00
committed by Jakub Kicinski
parent 2f61f38a21
commit 12133a483d
1 changed files with 1 additions and 0 deletions
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1
drivers/nfc/pn533/usb.c
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@@ -628,6 +628,7 @@ static void pn533_usb_disconnect(struct usb_interface *interface)
usb_free_urb(phy->out_urb);
usb_free_urb(phy->ack_urb);
kfree(phy->ack_buffer);
usb_put_dev(phy->udev);
nfc_info(&interface->dev, "NXP PN533 NFC device disconnected\n");
}