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 1369E28640B; Thu, 10 Jul 2025 05:47:30 +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=1752126451; cv=none; b=Puwv+lcmNttgqgQIdcXIuvPYAkgA8pGm0dK/9h4zl8s8C/53c+81A2unm8houXtwFyCyqthSlZJ/IQEPUvRspKd8l+QRRKLYT9+gFWgK7BWgCH18tqT8bvbJCb7bjCMHFwpbGPiIRqlzmufwGBr/2E4WcPt/NOi7BBTN4sLUl8s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752126451; c=relaxed/simple; bh=h71xMkuvu0NJWxV/1p2bWm6fmXUjPv4qo4m5BgHOf0Q=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=itOmRSm7zID7LKB8a2eB+yPaqWVdsCtyVLndUkiWX24N8HCStKMq8I1+D3uZV6IesmFbgVsVS/qiRd86+jigk/yU86Im2scvEnAHH4Sf0lEA7OocI4c92gl50Ovc+0gfti1k3eG5prceM4PCvp48ElgPbAZDH3VdqYnzSeoUeqk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Rw5ZZe0m; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Rw5ZZe0m" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C5FFAC4CEE3; Thu, 10 Jul 2025 05:47:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1752126450; bh=h71xMkuvu0NJWxV/1p2bWm6fmXUjPv4qo4m5BgHOf0Q=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=Rw5ZZe0mI2+EfSVaxUcdd5EjisLSBIepWWsDlZXrQUB+gQYxIo5PTlzUHVKinn9AU FIgV7+fZPi3sC3NYFqqAkJrlt8GzZTo+fc8WjsaETaA36NHhSI4lrBfekQJEwKIBe6 ePMblpG0P6XYRbIY4YvdwIbmRS0bdoC/QPlsG0IpEpWorKpHm+oOD8GsqWuKN6xfoR BTD1LhNBOdZLkGtBOsnRxH4KyKJBXOXKnR1zbDgktEHd9DnIVN9zsmxEU05YEFHA5/ yXLgXy9D93yGvUqM+VCItcNQQ97q/+//FLy9XQhxFnLnv4o+5yAjiwySLG8FIYof71 euIyT+K6tnvsQ== Message-ID: <354d249c-fd85-4090-af49-25d154f4be24@kernel.org> Date: Thu, 10 Jul 2025 07:47:25 +0200 Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] wifi: mt76: fix potential memory leak in mt76_wmac_probe() To: Abdun Nihaal , nbd@nbd.name Cc: lorenzo@kernel.org, ryder.lee@mediatek.com, shayne.chen@mediatek.com, sean.wang@mediatek.com, matthias.bgg@gmail.com, angelogioacchino.delregno@collabora.com, kvalo@kernel.org, toke@toke.dk, jeff.johnson@oss.qualcomm.com, u.kleine-koenig@baylibre.com, linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org References: <20250709145532.41246-1-abdun.nihaal@gmail.com> Content-Language: en-US From: Jiri Slaby Autocrypt: addr=jirislaby@kernel.org; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 09. 07. 25, 16:55, Abdun Nihaal wrote: > In mt76_wmac_probe(), when the mt76_alloc_device() call succeeds, memory > is allocated for both struct ieee80211_hw and a workqueue. However, on > the error path, the workqueue is not freed. Fix that by calling > mt76_free_device() on the error path. > > Fixes: c8846e101502 ("mt76: add driver for MT7603E and MT7628/7688") > Signed-off-by: Abdun Nihaal I am not sure, why I am CCed, but makes sense anyway (free the one obtained by alloc_ordered_workqueue() in mt76_alloc_device()): Reviewed-by: Jiri Slaby -- js suse labs