From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AG47ELtB3nlWdYQ2r2c3wUwPibEABQWW+7FVmK37aeynAjdmh1O2CcEr26uU0/RfzlmgByL1Z081 ARC-Seal: i=1; a=rsa-sha256; t=1521798960; cv=none; d=google.com; s=arc-20160816; b=0GWLlwZWFZE9Hp8Z+rnHgfXL3N90dTRaRGJ0UB6GsPld1cID6zDxzdgJXnIgj4+G/s ounqQ0jAu9Z2/cjqR2N6aqgdiB/cdmXmdpWwwsUuTrIiHgMwaSxFjf+/y8/1rtvJuoQW b4G4wrPjLdk1HmY6ssSnz3jdmlh1QWgJrJW7MtRHkALL9V7M/1u6xZ+tiChScAX0lUd1 GZfoeEFNSmBhGPzDMhs1UDu0XP99t3DlJfFwjp8jD+2ehR3T51xLSIfSXlLB8CpVf52t h01NcYZQ2dCSpPMd5FCOn+l6nBTEzL8Sv+k6EnC7bVX3tsJTVeMQodrZ6DXJWyIftKen Dxjg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=mime-version:user-agent:references:in-reply-to:message-id:date :subject:cc:to:from:arc-authentication-results; bh=h8AjTX0EFVXgnhYu6voj33oKAIkBUaxjtgKOOmC1bgE=; b=xV7k9UY1CuHPsJXGdfEbMXdOX5lkOCHTqOidBGQ9u3ObnmHtrhM1ukgaFrP/fPsqox WNjz/7oTXvvwumeYfQitsQeVgizMXSH6npEEYXwvMEbGL+vMszaHS+CxCRyH7zST3N8K 6GUhzchgGsII3/yKdHlroPYjJ05LhMO67hfC1sVL33DJ27KvCUk6Nc2yjLwSmna+UtZO 4OVyxCHZ3cGOJszvtuClT6Iw+6E4BrFze/8oK/+BniymDwLIeDzX2SmXGMRztKw4thLV 0xd8/2J27rAWuZvPvccDRclCuLL5zT97wENDnzB/80KGwwZcJIZK7jv52RwACBvvtKfn PDAw== ARC-Authentication-Results: i=1; mx.google.com; spf=softfail (google.com: domain of transitioning gregkh@linuxfoundation.org does not designate 90.92.61.202 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org Authentication-Results: mx.google.com; spf=softfail (google.com: domain of transitioning gregkh@linuxfoundation.org does not designate 90.92.61.202 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Geert Uytterhoeven , Tatyana Nikolova , Jason Gunthorpe , Sasha Levin Subject: [PATCH 4.15 11/84] RDMA/iwpm: Fix uninitialized error code in iwpm_send_mapinfo() Date: Fri, 23 Mar 2018 10:53:25 +0100 Message-Id: <20180323095413.643275901@linuxfoundation.org> X-Mailer: git-send-email 2.16.2 In-Reply-To: <20180323095411.913234798@linuxfoundation.org> References: <20180323095411.913234798@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-LABELS: =?utf-8?b?IlxcU2VudCI=?= X-GMAIL-THRID: =?utf-8?q?1595721867135742160?= X-GMAIL-MSGID: =?utf-8?q?1595721867135742160?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 4.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Geert Uytterhoeven [ Upstream commit 302d6424e4a293a5761997e6c9fc3dfb1e4c355f ] With gcc-4.1.2: drivers/infiniband/core/iwpm_util.c: In function ‘iwpm_send_mapinfo’: drivers/infiniband/core/iwpm_util.c:647: warning: ‘ret’ may be used uninitialized in this function Indeed, if nl_client is not found in any of the scanned has buckets, ret will be used uninitialized. Preinitialize ret to -EINVAL to fix this. Fixes: 30dc5e63d6a5ad24 ("RDMA/core: Add support for iWARP Port Mapper user space service") Signed-off-by: Geert Uytterhoeven Reviewed-by: Tatyana Nikolova Signed-off-by: Jason Gunthorpe Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/infiniband/core/iwpm_util.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/infiniband/core/iwpm_util.c +++ b/drivers/infiniband/core/iwpm_util.c @@ -654,6 +654,7 @@ int iwpm_send_mapinfo(u8 nl_client, int } skb_num++; spin_lock_irqsave(&iwpm_mapinfo_lock, flags); + ret = -EINVAL; for (i = 0; i < IWPM_MAPINFO_HASH_SIZE; i++) { hlist_for_each_entry(map_info, &iwpm_hash_bucket[i], hlist_node) {