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 26A71246326; Tue, 29 Apr 2025 17:02:41 +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=1745946161; cv=none; b=FXHYd7H/h2sAtQz21rYxMrnG4gJ4vBR5FsPzlfOHtCIfcKSSLxxb6AG6a3ASFn4uPxkZmRbVZlHyP6c0l++JQzX2rHwDj8VEDXx2G4EniiwT5BsWoWbnJJEs73wQb6WN+cNx35O29rDtSuySTZjowp78P9zSDAaqBgoMxj2ky2M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745946161; c=relaxed/simple; bh=w+AMD5QeMTEaf6tcvzH/kTW4MUvmKVHI92MG3vTaQqQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=h9NxMoQ7Sl14FXVPyh7y9KznZ2eE5L2TgW8YskaIbBE5SjvhSxrSZWd+aINtxDbIF1yIposqs41xEtNlT/NLzvMYe9CCs9ZoXyEiDfnMtCqf89HM3qIAiX+nURl4ILmJc6Mi4c+w5Huhj55RRGJWqB+GuQddnyDV02b/3xIj2g4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=x3XDrJF7; 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="x3XDrJF7" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AB196C4CEE3; Tue, 29 Apr 2025 17:02:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1745946161; bh=w+AMD5QeMTEaf6tcvzH/kTW4MUvmKVHI92MG3vTaQqQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=x3XDrJF7dUS3tsWVckPyx9aIpBi5Stf39wNbLHrC8PdtfAhlbtmlw0hwbJiUwCFi7 IYDrLBGHufvWOHMvhlWQVaWl54Kn6zTpE0JIJFrdxHOouuwqx3QdOv3+oYuAPlJmuC R5X735PUoLweXlkMhoogCs5AMHsNqpyyEaBLkHik= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, stable , Oliver Neukum Subject: [PATCH 6.14 175/311] USB: wdm: wdm_wwan_port_tx_complete mutex in atomic context Date: Tue, 29 Apr 2025 18:40:12 +0200 Message-ID: <20250429161128.198684566@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250429161121.011111832@linuxfoundation.org> References: <20250429161121.011111832@linuxfoundation.org> User-Agent: quilt/0.68 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 6.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Oliver Neukum commit 1fdc4dca350c0b8ada0b8ebf212504e1ad55e511 upstream. wdm_wwan_port_tx_complete is called from a completion handler with irqs disabled and possible in IRQ context usb_autopm_put_interface can take a mutex. Hence usb_autopm_put_interface_async must be used. Fixes: cac6fb015f71 ("usb: class: cdc-wdm: WWAN framework integration") Cc: stable Signed-off-by: Oliver Neukum Link: https://lore.kernel.org/r/20250401084749.175246-4-oneukum@suse.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/class/cdc-wdm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/usb/class/cdc-wdm.c +++ b/drivers/usb/class/cdc-wdm.c @@ -879,7 +879,7 @@ static void wdm_wwan_port_tx_complete(st struct sk_buff *skb = urb->context; struct wdm_device *desc = skb_shinfo(skb)->destructor_arg; - usb_autopm_put_interface(desc->intf); + usb_autopm_put_interface_async(desc->intf); wwan_port_txon(desc->wwanp); kfree_skb(skb); }