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 B8BB88635D; Tue, 26 Aug 2025 13:01:33 +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=1756213293; cv=none; b=FkadznwBx8onfLE7durpPnhpTLPSRoLnWA78XNotyFlduFcz6KVIKrjHVHCKsAcjPXKsiFN0tnIT3G+8zYYUFg6r4PxdIC9hHhwZ3scHHoaYEFUTNE/F16XoQOePdBp21ABL5N8qd7AIk2m2aqQ8/cR61T5C1G4DoAdXkWoSBf8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756213293; c=relaxed/simple; bh=yUqZFWEzeqbCuqAkh7ZrBg08+KmMV2li5NrP6qxpSHk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=lamfbjTkzfn/rza1x5Gp7ua34oH0QjZogap3cEIb1LxxgtlT1ph7tYQcGffEdz/dgi7LsXpKVOIOiMvdMgIUW6X7S7obTi4CgZcYJeK+VbqUxeEIM06bv7MVorScg0mgiLXD5u8qE9igCuW68zcvmZoVHkwRWENgr1BgTFHBMzo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=19pnd62e; 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="19pnd62e" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 42948C4CEF1; Tue, 26 Aug 2025 13:01:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1756213293; bh=yUqZFWEzeqbCuqAkh7ZrBg08+KmMV2li5NrP6qxpSHk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=19pnd62e84d18MynuhJjkqvkRjZBdgMDI345fCl9yZbSOjgDXBCTQ9MbrzzZdafKS PB8ruOyvefNqIxBtOW4WTGwxQZ8pe+MEZ1iGGtG85P19OJAcNVATlrXZkFkN/qBX06 iYs+qPisIokLH2HQ9i/2ZyVBsSbKqVUgBWOcBCFk= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Purva Yeshi , Mikulas Patocka , Sasha Levin Subject: [PATCH 6.6 261/587] md: dm-zoned-target: Initialize return variable r to avoid uninitialized use Date: Tue, 26 Aug 2025 13:06:50 +0200 Message-ID: <20250826110959.569142946@linuxfoundation.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250826110952.942403671@linuxfoundation.org> References: <20250826110952.942403671@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 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Purva Yeshi [ Upstream commit 487767bff572d46f7c37ad846c4078f6d6c9cc55 ] Fix Smatch-detected error: drivers/md/dm-zoned-target.c:1073 dmz_iterate_devices() error: uninitialized symbol 'r'. Smatch detects a possible use of the uninitialized variable 'r' in dmz_iterate_devices() because if dmz->nr_ddevs is zero, the loop is skipped and 'r' is returned without being set, leading to undefined behavior. Initialize 'r' to 0 before the loop. This ensures that if there are no devices to iterate over, the function still returns a defined value. Signed-off-by: Purva Yeshi Signed-off-by: Mikulas Patocka Signed-off-by: Sasha Levin --- drivers/md/dm-zoned-target.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/md/dm-zoned-target.c b/drivers/md/dm-zoned-target.c index b487f7acc860..36e55a5bcb0d 100644 --- a/drivers/md/dm-zoned-target.c +++ b/drivers/md/dm-zoned-target.c @@ -1062,7 +1062,7 @@ static int dmz_iterate_devices(struct dm_target *ti, struct dmz_target *dmz = ti->private; unsigned int zone_nr_sectors = dmz_zone_nr_sectors(dmz->metadata); sector_t capacity; - int i, r; + int i, r = 0; for (i = 0; i < dmz->nr_ddevs; i++) { capacity = dmz->dev[i].capacity & ~(zone_nr_sectors - 1); -- 2.39.5