Check newly registered backlight_device for error and properly
return error to parent
Mark struct backlight_ops as const.
Signed-off-by: Bruno Prémont <[email protected]>
Acked-by: Mike Frysinger <[email protected]> (constify struct backlight_ops)
---
drivers/video/bf54x-lq043fb.c | 10 +++++++++-
drivers/video/bfin-t350mcqb-fb.c | 10 +++++++++-
2 files changed, 18 insertions(+), 2 deletions(-)
diff --git a/drivers/video/bf54x-lq043fb.c b/drivers/video/bf54x-lq043fb.c
index db4e6f7..a589216 100644
--- a/drivers/video/bf54x-lq043fb.c
+++ b/drivers/video/bf54x-lq043fb.c
@@ -463,7 +463,7 @@ static int bl_get_brightness(struct backlight_device *bd)
return 0;
}
-static struct backlight_ops bfin_lq043fb_bl_ops = {
+static const struct backlight_ops bfin_lq043fb_bl_ops = {
.get_brightness = bl_get_brightness,
};
@@ -678,6 +678,12 @@ static int __devinit bfin_bf54x_probe(struct platform_device *pdev)
bl_dev =
backlight_device_register("bf54x-bl", NULL, NULL,
&bfin_lq043fb_bl_ops);
+ if (IS_ERR(bl_dev)) {
+ printk(KERN_ERR DRIVER_NAME
+ ": unable to register backlight.\n");
+ ret = -EINVAL;
+ goto out9;
+ }
bl_dev->props.max_brightness = 255;
lcd_dev = lcd_device_register(DRIVER_NAME, &pdev->dev, NULL, &bfin_lcd_ops);
@@ -686,6 +692,8 @@ static int __devinit bfin_bf54x_probe(struct platform_device *pdev)
return 0;
+out9:
+ unregister_framebuffer(fbinfo);
out8:
free_irq(info->irq, info);
out7:
diff --git a/drivers/video/bfin-t350mcqb-fb.c b/drivers/video/bfin-t350mcqb-fb.c
index bc204c6..fe1492b 100644
--- a/drivers/video/bfin-t350mcqb-fb.c
+++ b/drivers/video/bfin-t350mcqb-fb.c
@@ -381,7 +381,7 @@ static int bl_get_brightness(struct backlight_device *bd)
return 0;
}
-static struct backlight_ops bfin_lq043fb_bl_ops = {
+static const struct backlight_ops bfin_lq043fb_bl_ops = {
.get_brightness = bl_get_brightness,
};
@@ -572,6 +572,12 @@ static int __devinit bfin_t350mcqb_probe(struct platform_device *pdev)
bl_dev =
backlight_device_register("bf52x-bl", NULL, NULL,
&bfin_lq043fb_bl_ops);
+ if (IS_ERR(bl_dev)) {
+ printk(KERN_ERR DRIVER_NAME
+ ": unable to register backlight.\n");
+ ret = -EINVAL;
+ goto out9;
+ }
bl_dev->props.max_brightness = 255;
lcd_dev = lcd_device_register(DRIVER_NAME, NULL, &bfin_lcd_ops);
@@ -580,6 +586,8 @@ static int __devinit bfin_t350mcqb_probe(struct platform_device *pdev)
return 0;
+out9:
+ unregister_framebuffer(fbinfo);
out8:
free_irq(info->irq, info);
out7:
--
1.6.4.4