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 7D1F0201270; Tue, 30 Jul 2024 16:01:17 +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=1722355277; cv=none; b=HUlidI+rAH0wsMmOBjtFe7ntQ2OybFqg9YOREWhNrFAiYR/OQ+6F1ukMTF6CnROOm7yr4lca6+KrVkWJFRH9B+Ga/3bT9+wrR+b1JjMq5Dhg5MfErzKmi9RdZQM95dcga8O6VdZLsCaoxj7fqjelC6hEO7NYF6Z08+Js5XDhuvo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722355277; c=relaxed/simple; bh=jWAsxuvkehLTmPohvWkaFpQ958o2FlDJHal2HTYsc14=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=k9vz68IYj9KJ4AdS35v7KT8mBCUf3ofOe7WQm1xAeZr7tS4j3n4Y27MjsaKHWuk5vY6q+wC3CrEuGIt5QQ0vtSiju/CyEPbSdIER0aOhjeN4KphZeU0OF0OR3lnr3o0dlzdYzyDbFvTRYN1WGH+7x6kZITyGFSlcG58ZeG2sG2Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=Z0ZgzU/o; 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="Z0ZgzU/o" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C6702C32782; Tue, 30 Jul 2024 16:01:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1722355277; bh=jWAsxuvkehLTmPohvWkaFpQ958o2FlDJHal2HTYsc14=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Z0ZgzU/oXXI7cGQX87Pl9wY/weC3DBWtrbmdFebo6pHTzCzq6D+Kv7hYCdiu6yEDx NdtACLqkH26NXzNevvHgIcLMpWjc1pYWqbjNNK1wTYvsnAa7wGMPDrSGhkXRvTKtH7 xDEnv6kRlN6wymMyKq2m15j9+r0n0IGEgggCDtGk= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Yao Zi , Neil Armstrong , Sasha Levin Subject: [PATCH 6.10 036/809] drm/meson: fix canvas release in bind function Date: Tue, 30 Jul 2024 17:38:32 +0200 Message-ID: <20240730151726.078226629@linuxfoundation.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240730151724.637682316@linuxfoundation.org> References: <20240730151724.637682316@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 6.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Yao Zi [ Upstream commit a695949b2e9bb6b6700a764c704731a306c4bebf ] Allocated canvases may not be released on the error exit path of meson_drv_bind_master(), leading to resource leaking. Rewrite exit path to release canvases on error. Fixes: 2bf6b5b0e374 ("drm/meson: exclusively use the canvas provider module") Signed-off-by: Yao Zi Reviewed-by: Neil Armstrong Link: https://lore.kernel.org/r/20240703155826.10385-2-ziyao@disroot.org Signed-off-by: Neil Armstrong Link: https://patchwork.freedesktop.org/patch/msgid/20240703155826.10385-2-ziyao@disroot.org Signed-off-by: Sasha Levin --- drivers/gpu/drm/meson/meson_drv.c | 37 +++++++++++++++---------------- 1 file changed, 18 insertions(+), 19 deletions(-) diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c index 17a5cca007e29..4bd0baa2a4f55 100644 --- a/drivers/gpu/drm/meson/meson_drv.c +++ b/drivers/gpu/drm/meson/meson_drv.c @@ -250,29 +250,20 @@ static int meson_drv_bind_master(struct device *dev, bool has_components) if (ret) goto free_drm; ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_vd1_0); - if (ret) { - meson_canvas_free(priv->canvas, priv->canvas_id_osd1); - goto free_drm; - } + if (ret) + goto free_canvas_osd1; ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_vd1_1); - if (ret) { - meson_canvas_free(priv->canvas, priv->canvas_id_osd1); - meson_canvas_free(priv->canvas, priv->canvas_id_vd1_0); - goto free_drm; - } + if (ret) + goto free_canvas_vd1_0; ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_vd1_2); - if (ret) { - meson_canvas_free(priv->canvas, priv->canvas_id_osd1); - meson_canvas_free(priv->canvas, priv->canvas_id_vd1_0); - meson_canvas_free(priv->canvas, priv->canvas_id_vd1_1); - goto free_drm; - } + if (ret) + goto free_canvas_vd1_1; priv->vsync_irq = platform_get_irq(pdev, 0); ret = drm_vblank_init(drm, 1); if (ret) - goto free_drm; + goto free_canvas_vd1_2; /* Assign limits per soc revision/package */ for (i = 0 ; i < ARRAY_SIZE(meson_drm_soc_attrs) ; ++i) { @@ -288,11 +279,11 @@ static int meson_drv_bind_master(struct device *dev, bool has_components) */ ret = drm_aperture_remove_framebuffers(&meson_driver); if (ret) - goto free_drm; + goto free_canvas_vd1_2; ret = drmm_mode_config_init(drm); if (ret) - goto free_drm; + goto free_canvas_vd1_2; drm->mode_config.max_width = 3840; drm->mode_config.max_height = 2160; drm->mode_config.funcs = &meson_mode_config_funcs; @@ -307,7 +298,7 @@ static int meson_drv_bind_master(struct device *dev, bool has_components) if (priv->afbcd.ops) { ret = priv->afbcd.ops->init(priv); if (ret) - goto free_drm; + goto free_canvas_vd1_2; } /* Encoder Initialization */ @@ -371,6 +362,14 @@ static int meson_drv_bind_master(struct device *dev, bool has_components) exit_afbcd: if (priv->afbcd.ops) priv->afbcd.ops->exit(priv); +free_canvas_vd1_2: + meson_canvas_free(priv->canvas, priv->canvas_id_vd1_2); +free_canvas_vd1_1: + meson_canvas_free(priv->canvas, priv->canvas_id_vd1_1); +free_canvas_vd1_0: + meson_canvas_free(priv->canvas, priv->canvas_id_vd1_0); +free_canvas_osd1: + meson_canvas_free(priv->canvas, priv->canvas_id_osd1); free_drm: drm_dev_put(drm); -- 2.43.0