diff options
| author | Bruno Prémont <bonbons@linux-vserver.org> | 2010-02-26 13:04:54 +0100 |
|---|---|---|
| committer | Richard Purdie <rpurdie@linux.intel.com> | 2010-03-16 20:10:17 +0000 |
| commit | fa11de0a33e214a00e205494c27fb5a7bb71a5fa (patch) | |
| tree | bed4af34b31f9e782159f3c2c17fe13817df52a9 /drivers/video/bfin-t350mcqb-fb.c | |
| parent | f0af78991363d704694a3618b638662c97d8a110 (diff) | |
| download | lwn-fa11de0a33e214a00e205494c27fb5a7bb71a5fa.tar.gz lwn-fa11de0a33e214a00e205494c27fb5a7bb71a5fa.zip | |
backlight: blackfin - Fix missing registration failure handling
Check newly registered backlight_device for error and properly
return error to parent
Mark struct backlight_ops as const.
Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Acked-by: Mike Frysinger <vapier@gentoo.org> (constify struct backlight_ops)
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
Diffstat (limited to 'drivers/video/bfin-t350mcqb-fb.c')
| -rw-r--r-- | drivers/video/bfin-t350mcqb-fb.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/video/bfin-t350mcqb-fb.c b/drivers/video/bfin-t350mcqb-fb.c index 3a8e811a7e9f..31a2dec927bb 100644 --- a/drivers/video/bfin-t350mcqb-fb.c +++ b/drivers/video/bfin-t350mcqb-fb.c @@ -352,7 +352,7 @@ 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, }; @@ -545,6 +545,12 @@ static int __devinit bfin_t350mcqb_probe(struct platform_device *pdev) props.max_brightness = 255; bl_dev = backlight_device_register("bf52x-bl", NULL, NULL, &bfin_lq043fb_bl_ops, &props); + if (IS_ERR(bl_dev)) { + printk(KERN_ERR DRIVER_NAME + ": unable to register backlight.\n"); + ret = -EINVAL; + goto out9; + } lcd_dev = lcd_device_register(DRIVER_NAME, NULL, &bfin_lcd_ops); lcd_dev->props.max_contrast = 255, printk(KERN_INFO "Done.\n"); @@ -552,6 +558,8 @@ static int __devinit bfin_t350mcqb_probe(struct platform_device *pdev) return 0; +out9: + unregister_framebuffer(fbinfo); out8: free_irq(info->irq, info); out7: |