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 D798D23314A; Wed, 2 Apr 2025 09:07:55 +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=1743584875; cv=none; b=Cw/2uNYKH0EZsbq2gcXREHfaTf+aXoJhp97nXNv/hPtfpmrvGsnonP2jOj0c3bVkHDhr9LCckdSr3pxNdEZP9VSX6X35Ux0+LoqvgkOOAqRP5Zl6dJxfuRT+T3TUngHpLeJH+HVMzgACHsp0vY5UY7odsd78svT7ICU7cL6ve88= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743584875; c=relaxed/simple; bh=1cuYLAqzLjV85JwVKIDfGh+KXKmUSux5/54YPn9Pizk=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=rOZgvaREvpIdGW5P+ZWQvhXNn9z5xhLx9csaIyeQPCi1SEHKhrcvaFQ6kIHpFX4IE/Fxok7H8UDiMihNnnT0HetVsHQg7o7FcYrvh+yY3aAUO9tOQhrWz+6+hH9IEqbuvvcgAPCXttLQAFBPN9ySTpKXwZqyyKL9Dt9dh11BG2g= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Ew1tussH; 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="Ew1tussH" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6F539C4CEDD; Wed, 2 Apr 2025 09:07:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1743584875; bh=1cuYLAqzLjV85JwVKIDfGh+KXKmUSux5/54YPn9Pizk=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Ew1tussHkSV0vQc81A9nAjqYsr3ZRw1B8U2Gnv+qxLSrfU7JBrUc/rdt8ncp8lh1M JZhQu7RWFimASJER7twTzCt3oOng7HlNHrNsc8MQmDmN/NkuavCAW7OE/nBcei/mDZ RcROFaK+Hs63eKZZhDOpZhBBrE4HDrm5pGMflKzyzApqfb6m2NUYk3IwDByq9Mh5xu AaP1+jdPjBghwzRzXLMJw3m1Y3XZDxR+fYe1bjca4WwWDLrTNn55UloQCPCDrjYgjS G8KVDR9yrx9C51r+OdBo9Bygc+7nebfCIS/5192wCdWhaClhstFbqZR88s6mjbijqP tZC7EU7zb4bVA== Date: Wed, 2 Apr 2025 10:07:51 +0100 From: Simon Horman To: Markus Elfring Cc: Henry Martin , netdev@vger.kernel.org, LKML , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Michael Grzeschik , Paolo Abeni Subject: Re: [PATCH v2] arcnet: Add NULL check in com20020pci_probe() Message-ID: <20250402090751.GH214849@horms.kernel.org> References: <20250401145330.31817-1-bsdhenrymartin@gmail.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: On Tue, Apr 01, 2025 at 05:37:18PM +0200, Markus Elfring wrote: > > devm_kasprintf() return NULL if memory allocation fails. Currently, > … > call? failed? > > > > Add NULL check after devm_kasprintf() to prevent this issue. > > Please complete also the corresponding exception handling. > > Source code example for further inspiration: > https://elixir.bootlin.com/linux/v6.14-rc6/source/drivers/net/arcnet/com20020-pci.c#L239-L244 > > Thus I suggest to use another label like “e_nomem” for this purpose. Ok, but surely the err_free_arcdev label can be reused for this purpose.