From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2EF0DC43381 for ; Thu, 28 Feb 2019 08:36:01 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id F2ABF218AE for ; Thu, 28 Feb 2019 08:36:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="BulW4VbT" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F2ABF218AE Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=nod.at Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=B5bGKsW7Cy4Zxn4y4EwRZhARAb2g56eg+/74/5L6reg=; b=BulW4VbT3njYuC 4cRx34tv59+ryuzJCI2p8lpDUV7HpU+LfZXpwM8tj0A3rAeCYAtBEeIjWJ+cMktSE1/ncXBb9RgUa ucSFohnk95DMS1vQL0LJ/rmt0ZEBJbIb8gAd9W+oCV/LmTw+PaWO0LcSc9i/KUbHTBpV2AVfqela2 eH7CHymKS6zSq0668M41lmKkTaVRPI2X0YmXuWBZs2JTSpayoeKZ6FaPl7uTmvTpTz2xpNjh5bYE9 GTanIk5FS3QnJq0+UWtih3Eu66bBD1cNrp3PBu74mnYbuonuxMTag7ZpjRF1pTVqYprzfdPYtS7js rRwRNrmUwJqhVqVRsqAQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gzHAd-0008AG-0t; Thu, 28 Feb 2019 08:35:59 +0000 Received: from lithops.sigma-star.at ([195.201.40.130]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1gzHAZ-00088s-4w for linux-mtd@lists.infradead.org; Thu, 28 Feb 2019 08:35:57 +0000 Received: from localhost (localhost [127.0.0.1]) by lithops.sigma-star.at (Postfix) with ESMTP id 872F1608A396; Thu, 28 Feb 2019 09:35:51 +0100 (CET) Received: from lithops.sigma-star.at ([127.0.0.1]) by localhost (lithops.sigma-star.at [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id itjBi0Ip0Qwz; Thu, 28 Feb 2019 09:35:51 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by lithops.sigma-star.at (Postfix) with ESMTP id 34F55608A397; Thu, 28 Feb 2019 09:35:51 +0100 (CET) Received: from lithops.sigma-star.at ([127.0.0.1]) by localhost (lithops.sigma-star.at [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id MMr32QXzIu_C; Thu, 28 Feb 2019 09:35:51 +0100 (CET) Received: from blindfold.localnet (unknown [82.150.214.1]) by lithops.sigma-star.at (Postfix) with ESMTPSA id C2230608A396; Thu, 28 Feb 2019 09:35:50 +0100 (CET) From: Richard Weinberger To: Dan Carpenter Subject: Re: [PATCH] ubi: wl: Silence uninitialized variable warning Date: Thu, 28 Feb 2019 09:35:50 +0100 Message-ID: <8490920.CCJDc82j5X@blindfold> In-Reply-To: <20190228053551.GB3253@kadam> References: <20190228053551.GB3253@kadam> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190228_003555_340413_D95C2201 X-CRM114-Status: GOOD ( 16.91 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Boris Brezillon , Artem Bityutskiy , kernel-janitors@vger.kernel.org, Marek Vasut , linux-mtd@lists.infradead.org, Brian Norris , David Woodhouse Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org Am Donnerstag, 28. Februar 2019, 06:35:51 CET schrieb Dan Carpenter: > This condition needs to be fipped around because "err" is uninitialized > when "force" is set. The Smatch static analysis tool complains and > UBsan will also complain at runtime. > > Fixes: 663586c0a892 ("ubi: Expose the bitrot interface") > Signed-off-by: Dan Carpenter > --- > drivers/mtd/ubi/wl.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c > index 40f838d54b0f..2709dc02fc24 100644 > --- a/drivers/mtd/ubi/wl.c > +++ b/drivers/mtd/ubi/wl.c > @@ -1517,7 +1517,7 @@ int ubi_bitflip_check(struct ubi_device *ubi, int pnum, int force) > mutex_unlock(&ubi->buf_mutex); > } > > - if (err == UBI_IO_BITFLIPS || force) { > + if (force || err == UBI_IO_BITFLIPS) { > /* > * Okay, bit flip happened, let's figure out what we can do. > */ > Good catch, Dan! I thought gcc is supposed to find such issues too. :-/ Thanks, //richard ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/