From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7273030DD3C; Thu, 12 Mar 2026 20:20:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773346806; cv=none; b=RV0mutLXcZNpGyanZMJHpHnd51cN668bJtGcMY0PACSelDo3EPCaeyDuK57B5dWBeU5PjHmL0ebv8CYkg1ZvhhbSkma0uJgnLwO6EW9ve5pFcIl7SOukaf6MW4czq7xHGRDqHa/P59qA9g9klUbYmZn/eHT3aUIx5ZDA6Wsm+BE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773346806; c=relaxed/simple; bh=NHK7CrtDOhgL4rslTTAsOhtU/DLr/t/HHKUJFr5esjc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=jMpLoulC8y1V10M4jyiCfxDlHzNvaPdyh0SV3L0MJeKLRGFNBWDLlVIGokptdT47mtYQvH8LLWVrLLx7nkeLUKikBGUuXI+g4u1f9WEl+4gEF8c8X/E96ldsAPZEwNaGTSn3ko4t4KxLDUiOrO8uiMsO3cTdSLCMqSFeGN85ths= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=gDlHL/Gi; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="gDlHL/Gi" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E1C83C4CEF7; Thu, 12 Mar 2026 20:20:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1773346806; bh=NHK7CrtDOhgL4rslTTAsOhtU/DLr/t/HHKUJFr5esjc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gDlHL/Gi06sYZqFQ0HkQMSKetuB4LqZVDbhyKQMbi2PzRIP46Og5GXjJddbknQ+z+ XI7NyHyydqUD3swsJuoyliYGrqcPQ1tJLInq45SXw6THwGUKrwycvbJl1zgst06bUs OlAltuPjU4Gudzo6gKOI6guvPialKEhq470nq4D0= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, stable , Simon Horman , Jakub Kicinski Subject: [PATCH 6.12 129/265] nfc: pn533: properly drop the usb interface reference on disconnect Date: Thu, 12 Mar 2026 21:08:36 +0100 Message-ID: <20260312201022.910249983@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260312201018.128816016@linuxfoundation.org> References: <20260312201018.128816016@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Greg Kroah-Hartman commit 12133a483dfa832241fbbf09321109a0ea8a520e upstream. 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 Signed-off-by: Greg Kroah-Hartman Reviewed-by: Simon Horman Fixes: c46ee38620a2 ("NFC: pn533: add NXP pn533 nfc device driver") Link: https://patch.msgid.link/2026022329-flashing-ought-7573@gregkh Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- drivers/nfc/pn533/usb.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/nfc/pn533/usb.c +++ b/drivers/nfc/pn533/usb.c @@ -628,6 +628,7 @@ static void pn533_usb_disconnect(struct 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"); }