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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-26 00:01:23 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-26 00:01:23 +0300 |
| commit | 46f538bf2404ee9c32648deafb886f49144bfd5e (patch) | |
| tree | cab6f6ec6bf5997cb6daf6c85b76f7b4bc606dcb /drivers/video | |
| parent | 8350e8331b3971533d6e6112ab596eda2c2ffffd (diff) | |
| parent | 023a8830a62846e1cecc8da07e00c801dd0d7598 (diff) | |
| download | linux-46f538bf2404ee9c32648deafb886f49144bfd5e.tar.xz | |
Merge tag 'backlight-next-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight
Pull backlight updates from Lee Jones:
"New Device Support:
- Add support for PM6150L to Qualcomm WLED
Fix-ups"
- Use kcalloc() to avoid open-coding; pwm_bl
- Device Tree changes; qcom-wled
- Cleanup or simplify code; backlight"
* tag 'backlight-next-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
backlight: backlight: Slighly simplify devm_of_find_backlight()
backlight: qcom-wled: Add PM6150L compatible
dt-bindings: backlight: qcom-wled: Add PM6150L compatible
backlight: pwm_bl: Avoid open coded arithmetic in memory allocation
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/backlight/backlight.c | 10 | ||||
| -rw-r--r-- | drivers/video/backlight/pwm_bl.c | 9 |
2 files changed, 8 insertions, 11 deletions
diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c index 4ae6fae94ac2..b788ff3d0f45 100644 --- a/drivers/video/backlight/backlight.c +++ b/drivers/video/backlight/backlight.c @@ -710,8 +710,7 @@ static void devm_backlight_release(void *data) { struct backlight_device *bd = data; - if (bd) - put_device(&bd->dev); + put_device(&bd->dev); } /** @@ -737,11 +736,10 @@ struct backlight_device *devm_of_find_backlight(struct device *dev) bd = of_find_backlight(dev); if (IS_ERR_OR_NULL(bd)) return bd; - ret = devm_add_action(dev, devm_backlight_release, bd); - if (ret) { - put_device(&bd->dev); + ret = devm_add_action_or_reset(dev, devm_backlight_release, bd); + if (ret) return ERR_PTR(ret); - } + return bd; } EXPORT_SYMBOL(devm_of_find_backlight); diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c index 8d8959a70e44..c0523a0269ee 100644 --- a/drivers/video/backlight/pwm_bl.c +++ b/drivers/video/backlight/pwm_bl.c @@ -263,9 +263,8 @@ static int pwm_backlight_parse_dt(struct device *dev, /* read brightness levels from DT property */ if (num_levels > 0) { - size_t size = sizeof(*data->levels) * num_levels; - - data->levels = devm_kzalloc(dev, size, GFP_KERNEL); + data->levels = devm_kcalloc(dev, num_levels, + sizeof(*data->levels), GFP_KERNEL); if (!data->levels) return -ENOMEM; @@ -320,8 +319,8 @@ static int pwm_backlight_parse_dt(struct device *dev, * Create a new table of brightness levels with all the * interpolated steps. */ - size = sizeof(*table) * num_levels; - table = devm_kzalloc(dev, size, GFP_KERNEL); + table = devm_kcalloc(dev, num_levels, sizeof(*table), + GFP_KERNEL); if (!table) return -ENOMEM; /* |