From nobody Sun Feb 8 13:11:54 2026 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 3205921690E; Sun, 24 Mar 2024 23:09:21 +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=1711321762; cv=none; b=rlnLwI2BzeSCGdFxI4GdHPDK7scQh7kMaWk1vpLyxmaTImM6nH6TbSbpMrUehlDTz8y2Wtc1MiuQEzGr5JtygjHsj9elF2Fbm7eIvULifANXpOoedyuBAn0arh1LwRtt44frOgZaFm/YNTVs6qZo5AkC7DGhGkRB1sKDInrFguI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711321762; c=relaxed/simple; bh=vXv6RwD2T4GSRX/k7xQwPN1CXiLLNq2tTZjiE206sV8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=J4pTazZvhrn5Ewkep7rBDMOJE4XxjWoZNlMq2vXLU9eFGTGl3NIRF2lH2YARwZeri5FzMONsFTInpjY95rgR3lxFVrQv4xKrVl/CM78xje5wrexcLwMfHgLW/WfMzpnMTtdu7YUOGl7DdIe26DGQ3DIzS2OrZU5ZolwYIOv5uTM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=sBv9okLO; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="sBv9okLO" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 73DC3C43394; Sun, 24 Mar 2024 23:09:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1711321761; bh=vXv6RwD2T4GSRX/k7xQwPN1CXiLLNq2tTZjiE206sV8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sBv9okLO0DPvCKj7Gw7P7zOnD3j7C9eEQEZGORPE0jTNVrZFiiGsks9i2oFBIUdu/ homhp7H2my5fSnUjUhFjJAMxsF7m8YqoEu9zIY9JDSIZjGs3hyK+VLOY+OKHMFydT7 G459w9c4cHOD+R8IX1vaV4wC41RmNPHkNKG0/HuIVfdCNEY6t6574gdWVdvRDCZ3ot C9sacb77d3TxU5V2lrABQuGBG3PkmWLlBEbSOeJb5QicZVqEekpoW/TrHU09MFdFlt D4Jb8K6YvFbsOO2xUhvA96VXfF8PTb9/Y1Z3PcUg0Kiqwn1PxXnUgUwRGuz/EBkgRl psMMnS2qm2r1g== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Daniel Thompson , Lee Jones , Sasha Levin Subject: [PATCH 6.6 489/638] backlight: lp8788: Fully initialize backlight_properties during probe Date: Sun, 24 Mar 2024 18:58:46 -0400 Message-ID: <20240324230116.1348576-490-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240324230116.1348576-1-sashal@kernel.org> References: <20240324230116.1348576-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Daniel Thompson [ Upstream commit 392346827fbe8a7fd573dfb145170d7949f639a6 ] props is stack allocated and the fields that are not explcitly set by the probe function need to be zeroed or we'll get undefined behaviour (especially so power/blank states)! Fixes: c5a51053cf3b ("backlight: add new lp8788 backlight driver") Signed-off-by: Daniel Thompson Link: https://lore.kernel.org/r/20240220153532.76613-4-daniel.thompson@lina= ro.org Signed-off-by: Lee Jones Signed-off-by: Sasha Levin --- drivers/video/backlight/lp8788_bl.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/video/backlight/lp8788_bl.c b/drivers/video/backlight/= lp8788_bl.c index d1a14b0db265b..31f97230ee506 100644 --- a/drivers/video/backlight/lp8788_bl.c +++ b/drivers/video/backlight/lp8788_bl.c @@ -191,6 +191,7 @@ static int lp8788_backlight_register(struct lp8788_bl *= bl) int init_brt; char *name; =20 + memset(&props, 0, sizeof(struct backlight_properties)); props.type =3D BACKLIGHT_PLATFORM; props.max_brightness =3D MAX_BRIGHTNESS; =20 --=20 2.43.0