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 6B8A027EFE7; Tue, 26 Aug 2025 13:42:03 +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=1756215723; cv=none; b=bbrosgu7KV6yjU2vGub/gaY8/GzOE7VKptGrEVkR9yaa4SYtjaac4C6CJ9iN0wr6L7Vy2R7Zs8ASEk1IAzFyuWptOABQ+dY6EHuWl6Wyi5H4zP7wYL/Qy+g/gfh9BS8JGgk7PB04Cs6i7ywF3W3uxr2/Py5FSgOxSZsPHsnrNgw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756215723; c=relaxed/simple; bh=/PcHBnnUIVAZkkxoXFb5uegMwDhHsP4dyKWKxcNVE/E=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=giITP8uZYqd9oSNZwXF1gIDYf1FD31xHur6dIsYH8BKdAewdX54zNSrb+Se15iAALwMqk3nk9YRBkR0umZFMtbi2ICLK7zPE0SBcpBFxFsxDwyBMQ1Zp6yqoDE/GV25mdMIDr26FB2mzYSAFJTweczfgpTd+GczGS0aSUMQrA20= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=DaJpkm/x; 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="DaJpkm/x" Received: by smtp.kernel.org (Postfix) with ESMTPSA id EFC8BC4CEF1; Tue, 26 Aug 2025 13:42:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1756215723; bh=/PcHBnnUIVAZkkxoXFb5uegMwDhHsP4dyKWKxcNVE/E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=DaJpkm/xC8oOHwgQgrVUEIESx5WJn7JercrNKJ4zDFQhq/CuHz2zQrhNf1tMa19MO vgsdxcd9nHjFeeHEymNBrIeCKf4mzZ9AET8Hd1vrzL781ivB8dZqpX6bvrkhaFAAvn kce71p2jB+7r/uyiu6fRwXnusaf7q6e7vS0mDDcU= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jiasheng Jiang , Miri Korenblit , Sasha Levin Subject: [PATCH 5.15 142/644] iwlwifi: Add missing check for alloc_ordered_workqueue Date: Tue, 26 Aug 2025 13:03:53 +0200 Message-ID: <20250826110950.012815399@linuxfoundation.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250826110946.507083938@linuxfoundation.org> References: <20250826110946.507083938@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev 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: Jiasheng Jiang [ Upstream commit 90a0d9f339960448a3acc1437a46730f975efd6a ] Add check for the return value of alloc_ordered_workqueue since it may return NULL pointer. Fixes: b481de9ca074 ("[IWLWIFI]: add iwlwifi wireless drivers") Signed-off-by: Jiasheng Jiang Link: https://patch.msgid.link/20230110014848.28226-1-jiasheng@iscas.ac.cn Signed-off-by: Miri Korenblit Signed-off-by: Sasha Levin --- drivers/net/wireless/intel/iwlwifi/dvm/main.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/dvm/main.c b/drivers/net/wireless/intel/iwlwifi/dvm/main.c index 69d1aae96bbb..0ff9b0a1bd18 100644 --- a/drivers/net/wireless/intel/iwlwifi/dvm/main.c +++ b/drivers/net/wireless/intel/iwlwifi/dvm/main.c @@ -1053,9 +1053,11 @@ static void iwl_bg_restart(struct work_struct *data) * *****************************************************************************/ -static void iwl_setup_deferred_work(struct iwl_priv *priv) +static int iwl_setup_deferred_work(struct iwl_priv *priv) { priv->workqueue = alloc_ordered_workqueue(DRV_NAME, 0); + if (!priv->workqueue) + return -ENOMEM; INIT_WORK(&priv->restart, iwl_bg_restart); INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update); @@ -1072,6 +1074,8 @@ static void iwl_setup_deferred_work(struct iwl_priv *priv) timer_setup(&priv->statistics_periodic, iwl_bg_statistics_periodic, 0); timer_setup(&priv->ucode_trace, iwl_bg_ucode_trace, 0); + + return 0; } void iwl_cancel_deferred_work(struct iwl_priv *priv) @@ -1461,7 +1465,9 @@ static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans, /******************** * 6. Setup services ********************/ - iwl_setup_deferred_work(priv); + if (iwl_setup_deferred_work(priv)) + goto out_uninit_drv; + iwl_setup_rx_handlers(priv); iwl_power_initialize(priv); @@ -1499,6 +1505,7 @@ static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans, iwl_cancel_deferred_work(priv); destroy_workqueue(priv->workqueue); priv->workqueue = NULL; +out_uninit_drv: iwl_uninit_drv(priv); out_free_eeprom_blob: kfree(priv->eeprom_blob); -- 2.39.5