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 0F2743FFD; Tue, 29 Apr 2025 18:15:01 +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=1745950501; cv=none; b=TXfB7z/ilxV5xWwfoI8cfO4QYgV7C+KN/JykaQT+TWcNaq6KiZn4OV1aiv87t9NZCSwpIQxOWUQ5klJqfgZ66N9+lrQS5+RGF0VnVgBhtBDb04E056WfmrAP9AA1eDY0KVbmf13Bsq022aC4tisL9FT8UoFQkrw0wGRfLtioMYI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745950501; c=relaxed/simple; bh=OP5ujesEBhd0h33KxTF11ITa5c1RhoWU4I6z69N7fMg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=NWdg1ipyhgomkUNNu20/gmHbYVd7ylJvdoj+TieeDJ2xFFon8MRvl7nTyW/KgLCpPxzbYIhLxNETkfLH7QTzu6L5byqShDKqtcHEYKUhIm4Lj9dMzVG/uD4g7hjVyq/NdTl5TYGESEygQQptYs5Qw62P73OgQDq24s6TW/mDzvc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=thOgzR0O; 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="thOgzR0O" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 82038C4CEE3; Tue, 29 Apr 2025 18:15:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1745950500; bh=OP5ujesEBhd0h33KxTF11ITa5c1RhoWU4I6z69N7fMg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=thOgzR0OhO0WgoWksdYCUkdxHEXVcyMaoX9E8SG8Pe0bHjGbi4evrqihfcqP909i1 nuf3ik54qZA38ZuYRVeW1RmiynnSDwsOF0Q1YTWgfXvFN3ASLQAcv/peu/KMQFQDG/ FxC1W8IOZ07fcorpDryKFucyjXjEvez9LguxKchA= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, stable , Oliver Neukum Subject: [PATCH 6.6 115/204] USB: wdm: wdm_wwan_port_tx_complete mutex in atomic context Date: Tue, 29 Apr 2025 18:43:23 +0200 Message-ID: <20250429161104.142089430@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250429161059.396852607@linuxfoundation.org> References: <20250429161059.396852607@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 6.6-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); }