From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 31C5B44AB7B; Tue, 21 Jul 2026 22:09:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784671784; cv=none; b=FOENVrhdsR7GEUN44vLMJOH0WDVlWFKoi4A4RF7/xbRypPm6+JCbc4a0RYyY35cQmRTfWwXNl5v2RWtzf2xWO8Wax3RHDEyWkIy3iydfw3YGo5vjL/0GsgmBOzbZexNo4KBFMaWLy7IXqGqEQjU/7w84ymFT8+tudDVAPqSH7yM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784671784; c=relaxed/simple; bh=tS4ChF+qylyfBZNQs9yewfnlY8w1GsNc/LNeEXbuo4I=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=FvBczwksVXRRRu5VXMTsvU/+J8AVhnHcdBB9hdaJ+mRmbkceohpg7USU0sy28HxtL1dPS//2AQ0mPcQ/xpKD3+R3Ij6X4DcE90pu+jK9f0yg6ac1HaLTbYEluP61iRGXVaQjYAg8BVwQeMfra4S3Y0QPVQdFYZ/zoV4jf7RY4mQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=cvtisXfM; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="cvtisXfM" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 98BEF1F000E9; Tue, 21 Jul 2026 22:09:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784671783; bh=K7Vy65wXLvb/pRULg2hxKwS+hcQrOxQfyj2fTqIHWQc=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=cvtisXfMrJXZCDfYEN4lfaUzJELAf7OpW+2sgpHnU5KUbKi2LuZHA89hsEQxVWuD2 TIrX6bzpyR0+HX3M6T+5LcX8Il+OVCtP//heSm+wBMfsB6fe5WT+OoKZ8Sf24YyBB8 /9E9Hw6dUEZPujbP/JkP8Y/108Z5RkiCMVtZEfM4= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, "Rafael J. Wysocki" , =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= , Sasha Levin Subject: [PATCH 5.15 377/843] platform/x86: xo15-ebook: Fix wakeup source and GPE handling Date: Tue, 21 Jul 2026 17:20:12 +0200 Message-ID: <20260721152414.518278778@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260721152405.946368001@linuxfoundation.org> References: <20260721152405.946368001@linuxfoundation.org> User-Agent: quilt/0.69 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-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Rafael J. Wysocki [ Upstream commit b2fc2c6ebbd2d49935c8960755d8170faead2159 ] The device_set_wakeup_enable() call in ebook_switch_add() doesn't actually do anything because power.can_wakeup is not set for ACPI device objects. Moreover, had it done anything, it would have registered a wakeup source object that wouldn't have been used going forward and that wakeup source would have been leaked after driver removal because ebook_switch_remove() doesn't clean it up. Accordingly, remove that call from ebook_switch_add(). Also prevent leaking an enabled ACPI GPE after removing the driver by adding appropriate cleanup code to ebook_switch_remove(). Fixes: 89ca11771a4b ("OLPC XO-1.5 ebook switch driver") Signed-off-by: Rafael J. Wysocki Link: https://patch.msgid.link/1966125.tdWV9SEqCh@rafael.j.wysocki Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen Signed-off-by: Sasha Levin --- drivers/platform/x86/xo15-ebook.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/platform/x86/xo15-ebook.c b/drivers/platform/x86/xo15-ebook.c index 97440462aa258a..6413bb8fe26df9 100644 --- a/drivers/platform/x86/xo15-ebook.c +++ b/drivers/platform/x86/xo15-ebook.c @@ -38,6 +38,7 @@ MODULE_DEVICE_TABLE(acpi, ebook_device_ids); struct ebook_switch { struct input_dev *input; char phys[32]; /* for input device */ + bool gpe_enabled; }; static int ebook_send_state(struct acpi_device *device) @@ -131,7 +132,7 @@ static int ebook_switch_add(struct acpi_device *device) /* Button's GPE is run-wake GPE */ acpi_enable_gpe(device->wakeup.gpe_device, device->wakeup.gpe_number); - device_set_wakeup_enable(&device->dev, true); + button->gpe_enabled = true; } return 0; @@ -147,6 +148,10 @@ static int ebook_switch_remove(struct acpi_device *device) { struct ebook_switch *button = acpi_driver_data(device); + if (button->gpe_enabled) + acpi_disable_gpe(device->wakeup.gpe_device, + device->wakeup.gpe_number); + input_unregister_device(button->input); kfree(button); return 0; -- 2.53.0