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 ACDB9197A68; Thu, 6 Jun 2024 14:13:38 +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=1717683218; cv=none; b=iDwsMveq75k6XM5a3lt6b3JxEtbwSriUyElol3WIaoXu5ubmagPQuxYB9g3x4Qqk+9nbqjp2+N1MA2y3X6h3hmKBTAKBXytUjzWkYffmQmU87RpsWFUGuKNKR9d7+1Et47DKwdsBrUy8b8mlydF77rQuh7RGtuCw4gfmfdyKGSc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717683218; c=relaxed/simple; bh=oKCvuBnfzHPU8bmx0elSLGpiwblT3u8GLWnjKIUSSyA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=P1mIdLtmlLwqt5lPdavDcMNSmmc+eT/bfMdRGV2hqDyJ/bPN09ib6x49a43tYGsr6pOIlV2ActH2Eg214rSn8KQ7bWsRlsrte8WLxHFaWZOexP38tSGc/MLQW1RbZ1Ot4v+2Q+qecKkzsmUX0cjechoXMY+fvNe0TBskCOmepmo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=t2BFZmRE; 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="t2BFZmRE" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 23D79C2BD10; Thu, 6 Jun 2024 14:13:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1717683218; bh=oKCvuBnfzHPU8bmx0elSLGpiwblT3u8GLWnjKIUSSyA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=t2BFZmREOYKvBpyj4GHoB2FkfIPd0YXzRKAWcWRqbg7ALEjkPh7g9/AjGP0pJrh4x YB6D53tswpmXnCqrdo96/FVCwrclf0PPlJqXpHbUIN/VIwc5P2csWP/4AGWSUv9k+o GgkrH/sq8pf46TavIN5LjaE2USeA2EOsWJlGfXEs= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Zenghui Yu , Thomas Gleixner , Sasha Levin Subject: [PATCH 6.6 160/744] irqchip/alpine-msi: Fix off-by-one in allocation error path Date: Thu, 6 Jun 2024 15:57:12 +0200 Message-ID: <20240606131737.555946733@linuxfoundation.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240606131732.440653204@linuxfoundation.org> References: <20240606131732.440653204@linuxfoundation.org> User-Agent: quilt/0.67 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: Zenghui Yu [ Upstream commit ff3669a71afa06208de58d6bea1cc49d5e3fcbd1 ] When alpine_msix_gic_domain_alloc() fails, there is an off-by-one in the number of interrupts to be freed. Fix it by passing the number of successfully allocated interrupts, instead of the relative index of the last allocated one. Fixes: 3841245e8498 ("irqchip/alpine-msi: Fix freeing of interrupts on allocation error path") Signed-off-by: Zenghui Yu Signed-off-by: Thomas Gleixner Link: https://lore.kernel.org/r/20240327142305.1048-1-yuzenghui@huawei.com Signed-off-by: Sasha Levin --- drivers/irqchip/irq-alpine-msi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/irqchip/irq-alpine-msi.c b/drivers/irqchip/irq-alpine-msi.c index 9c8b1349ee17b..a1430ab60a8a3 100644 --- a/drivers/irqchip/irq-alpine-msi.c +++ b/drivers/irqchip/irq-alpine-msi.c @@ -165,7 +165,7 @@ static int alpine_msix_middle_domain_alloc(struct irq_domain *domain, return 0; err_sgi: - irq_domain_free_irqs_parent(domain, virq, i - 1); + irq_domain_free_irqs_parent(domain, virq, i); alpine_msix_free_sgi(priv, sgi, nr_irqs); return err; } -- 2.43.0