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 F2B6E215F6C; Tue, 29 Apr 2025 17:57:22 +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=1745949443; cv=none; b=XWzIkAcMyQZXKtuA2PrH5E3He7sWwVdfU1olBZH38H+OfPbX/Hl8ex3ybQG4CYKYKtpdX1FFT94bmLJfkZBDTsLrvWR0JNxSieY1BbjbFyTyQ/sqTXTXg2eNs1vASQV2krOfzdfKEKipmvrk4qKmWV3CcStvdan67V58S5bEXoU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745949443; c=relaxed/simple; bh=nhdkO3UmBydyvlCPvuTPNIROkDJPWJOmwNBqTq9vs+c=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=GU4r9awQyPo39O5e88JiUrxvLcHe+mMsHleHGgfEu90Ag+gjLEevahDYtC0rbrU/L7MVGDRtLTuK+sR5hazKXEsEoccuaLRlbA4jehxDGmdmf6LRcMVYEfSt+FbANyoocbTFlX9TfAGQxQAU85SiYOHdKLqi07ZvSYjd3gzGhg0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=tE4ZoFHH; 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="tE4ZoFHH" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7F41CC4CEE3; Tue, 29 Apr 2025 17:57:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1745949442; bh=nhdkO3UmBydyvlCPvuTPNIROkDJPWJOmwNBqTq9vs+c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=tE4ZoFHHEQ7CunYf8vuDdPEaNuZxUB6LhDN/iFESfSYclac+KMYMwgcdBAxetHyhH hpz5VciylrTkJszSmvY5BKtxsukTj76a/ADCp/V+SJTbw9umxi8FEF+zU5SVBDwaRl bNSX5AiQ7I2RmsMzoSoicrYvERSoHINu2c1Y1Dw0= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, stable , Oliver Neukum Subject: [PATCH 5.15 321/373] USB: wdm: wdm_wwan_port_tx_complete mutex in atomic context Date: Tue, 29 Apr 2025 18:43:18 +0200 Message-ID: <20250429161136.327965656@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250429161123.119104857@linuxfoundation.org> References: <20250429161123.119104857@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 5.15-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); }