linux-kernel - [PATCH] backlight: initialize struct backlight

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Date:	Mon, 21 May 2012 09:24:35 +0200
From:	Corentin Chary <corentin.chary@...il.com>
To:	Richard Purdie <rpurdie@...ys.net>
Cc:	Corentin Chary <corentin.chary@...il.com>,
	Keith Packard <keithp@...thp.com>,
	David Airlie <airlied@...ux.ie>,
	Matthew Garrett <mjg@...hat.com>,
	Florian Tobias Schandinat <FlorianSchandinat@....de>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Tomi Valkeinen <tomi.valkeinen@...com>,
	Mathieu Poirier <mathieu.poirier@...aro.org>,
	Dave Airlie <airlied@...hat.com>,
	Arnd Bergmann <arnd@...db.de>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Axel Lin <axel.lin@...il.com>, dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org, platform-driver-x86@...r.kernel.org,
	linux-fbdev@...r.kernel.org, patches@...nsource.wolfsonmicro.com,
	linux-omap@...r.kernel.org
Subject: [PATCH] backlight: initialize  struct backlight_properties properly

In all these files, the .power field was never correctly initialized.

Signed-off-by: Corentin Chary <corentin.chary@...il.com>
---
 drivers/gpu/drm/i915/intel_panel.c              |    1 +
 drivers/gpu/drm/radeon/radeon_legacy_encoders.c |    1 +
 drivers/platform/x86/toshiba_acpi.c             |    1 +
 drivers/video/backlight/da903x_bl.c             |    1 +
 drivers/video/backlight/pcf50633-backlight.c    |    1 +
 drivers/video/backlight/wm831x_bl.c             |    1 +
 drivers/video/omap2/displays/panel-acx565akm.c  |    1 +
 7 files changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index 48177ec..ec4a1e0 100644
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -342,6 +342,7 @@ int intel_panel_setup_backlight(struct drm_device *dev)
 	else
 		return -ENODEV;
 
+	memset(&props, 0, sizeof(props));
 	props.type = BACKLIGHT_RAW;
 	props.max_brightness = intel_panel_get_max_backlight(dev);
 	dev_priv->backlight =
diff --git a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
index 42db254..a0c8222 100644
--- a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
@@ -369,6 +369,7 @@ void radeon_legacy_backlight_init(struct radeon_encoder *radeon_encoder,
 		goto error;
 	}
 
+	memset(&props, 0, sizeof(props));
 	props.max_brightness = MAX_RADEON_LEVEL;
 	props.type = BACKLIGHT_RAW;
 	bd = backlight_device_register("radeon_bl", &drm_connector->kdev,
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
index bde32de..d680bb2 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -1095,6 +1095,7 @@ static int __devinit toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
 	ret = get_tr_backlight_status(dev, &enabled);
 	dev->tr_backlight_supported = !ret;
 
+	memset(&props, 0, sizeof(props));
 	props.type = BACKLIGHT_PLATFORM;
 	props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
 
diff --git a/drivers/video/backlight/da903x_bl.c b/drivers/video/backlight/da903x_bl.c
index 30e1968..573c7ec 100644
--- a/drivers/video/backlight/da903x_bl.c
+++ b/drivers/video/backlight/da903x_bl.c
@@ -136,6 +136,7 @@ static int da903x_backlight_probe(struct platform_device *pdev)
 		da903x_write(data->da903x_dev, DA9034_WLED_CONTROL2,
 				DA9034_WLED_ISET(pdata->output_current));
 
+	memset(&props, 0, sizeof(props));
 	props.type = BACKLIGHT_RAW;
 	props.max_brightness = max_brightness;
 	bl = backlight_device_register(pdev->name, data->da903x_dev, data,
diff --git a/drivers/video/backlight/pcf50633-backlight.c b/drivers/video/backlight/pcf50633-backlight.c
index c65853c..c092159 100644
--- a/drivers/video/backlight/pcf50633-backlight.c
+++ b/drivers/video/backlight/pcf50633-backlight.c
@@ -111,6 +111,7 @@ static int __devinit pcf50633_bl_probe(struct platform_device *pdev)
 	if (!pcf_bl)
 		return -ENOMEM;
 
+	memset(&bl_props, 0, sizeof(bl_props));
 	bl_props.type = BACKLIGHT_RAW;
 	bl_props.max_brightness = 0x3f;
 	bl_props.power = FB_BLANK_UNBLANK;
diff --git a/drivers/video/backlight/wm831x_bl.c b/drivers/video/backlight/wm831x_bl.c
index 5d365de..9e5517a 100644
--- a/drivers/video/backlight/wm831x_bl.c
+++ b/drivers/video/backlight/wm831x_bl.c
@@ -194,6 +194,7 @@ static int wm831x_backlight_probe(struct platform_device *pdev)
 	data->current_brightness = 0;
 	data->isink_reg = isink_reg;
 
+	memset(&props, 0, sizeof(props));
 	props.type = BACKLIGHT_RAW;
 	props.max_brightness = max_isel;
 	bl = backlight_device_register("wm831x", &pdev->dev, data,
diff --git a/drivers/video/omap2/displays/panel-acx565akm.c b/drivers/video/omap2/displays/panel-acx565akm.c
index d26f37a..74e7cf0 100644
--- a/drivers/video/omap2/displays/panel-acx565akm.c
+++ b/drivers/video/omap2/displays/panel-acx565akm.c
@@ -532,6 +532,7 @@ static int acx_panel_probe(struct omap_dss_device *dssdev)
 
 	/*------- Backlight control --------*/
 
+	memset(&props, 0, sizeof(props));
 	props.fb_blank = FB_BLANK_UNBLANK;
 	props.power = FB_BLANK_UNBLANK;
 	props.type = BACKLIGHT_RAW;
-- 
1.7.9.5

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