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 CA5133C0C; Tue, 23 Jan 2024 00:02:58 +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=1705968178; cv=none; b=fKH8LJmLRrnWrt8SVXy0NBo2o/rGOudkTcR7iotZljgm2/AhSS+46mTbsKmkpn/C5ArPwd/9TehBNn0YR6Zqe0peOgWBNmI+3KVW8+91ZzWqnVR69QQJdLwKleOdeDiMM4yQjR/zI5gQDdMplNnWgBSmd82GKhu7D4mXqnJ/hwg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705968178; c=relaxed/simple; bh=jGHd4BrGmaEaU9flj73qq5ZwKwvXHts0LQKsYKcwheU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=HFSfeDkSks4dEt/fWc6wQUmd9oV1E6BJDBgRo7A679qYcxIOTnmAXHYgiWfHYrRqFyObO4BoexXk3XDU+K/5gDtPdiWO3WeKcyQDjU05mf8SCkppUPlRSdrXyzFBotSc3eW+xRuyOqs1YM1X5ubXVerCnifFlrO0g5Pv8g+d0UU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=okntFTN0; 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="okntFTN0" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 77A2FC433F1; Tue, 23 Jan 2024 00:02:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1705968178; bh=jGHd4BrGmaEaU9flj73qq5ZwKwvXHts0LQKsYKcwheU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=okntFTN0hXRBGNXo9tRyHddakhzJPRc2q1H9aqPn/1j1boOtAOb1lyKDrFURBdwNl r4eSYzhuMQObjgpSCtYVEhXQNC+/NEjC14RUIlK+XPvIA0pB9Gr3SfqGRysnA+VxVX iaN2gI9U+MxDllw+KFflhmAmOWSszsVuvw45v5Dg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Kunwu Chan , Michael Ellerman , Sasha Levin Subject: [PATCH 4.19 035/148] powerpc/powernv: Add a null pointer check in opal_event_init() Date: Mon, 22 Jan 2024 15:56:31 -0800 Message-ID: <20240122235713.824299387@linuxfoundation.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240122235712.442097787@linuxfoundation.org> References: <20240122235712.442097787@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 4.19-stable review patch. If anyone has any objections, please let me know. ------------------ From: Kunwu Chan [ Upstream commit 8649829a1dd25199bbf557b2621cedb4bf9b3050 ] kasprintf() returns a pointer to dynamically allocated memory which can be NULL upon failure. Fixes: 2717a33d6074 ("powerpc/opal-irqchip: Use interrupt names if present") Signed-off-by: Kunwu Chan Signed-off-by: Michael Ellerman Link: https://msgid.link/20231127030755.1546750-1-chentao@kylinos.cn Signed-off-by: Sasha Levin --- arch/powerpc/platforms/powernv/opal-irqchip.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/powerpc/platforms/powernv/opal-irqchip.c b/arch/powerpc/platforms/powernv/opal-irqchip.c index bc97770a67db..e71f2111c8c0 100644 --- a/arch/powerpc/platforms/powernv/opal-irqchip.c +++ b/arch/powerpc/platforms/powernv/opal-irqchip.c @@ -282,6 +282,8 @@ int __init opal_event_init(void) else name = kasprintf(GFP_KERNEL, "opal"); + if (!name) + continue; /* Install interrupt handler */ rc = request_irq(r->start, opal_interrupt, r->flags & IRQD_TRIGGER_MASK, name, NULL); -- 2.43.0