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authorCorentin Labbe <clabbe.montjoie@gmail.com>2017-10-21 19:38:12 +0200
committerThierry Reding <thierry.reding@gmail.com>2017-11-15 10:56:55 +0100
commitdf4f6e8c9f089d8c8406f87df819b4d91277979c (patch)
tree285111ff8eb2a1283a12ac8f6b44c272135dfb6e /drivers/pwm
parent1b3d9a93ed8313e42f108f871133346694de5ac3 (diff)
downloadlinux-df4f6e8c9f089d8c8406f87df819b4d91277979c.tar.bz2
pwm: sunxi: Use of_device_get_match_data()
The usage of of_device_get_match_data reduce the code size a bit. Furthermore, it prevents an improbable dereference when of_match_device() returns NULL. Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'drivers/pwm')
-rw-r--r--drivers/pwm/pwm-sun4i.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/pwm/pwm-sun4i.c b/drivers/pwm/pwm-sun4i.c
index 6d23f1d1c9b7..334199c58f1d 100644
--- a/drivers/pwm/pwm-sun4i.c
+++ b/drivers/pwm/pwm-sun4i.c
@@ -368,14 +368,15 @@ static int sun4i_pwm_probe(struct platform_device *pdev)
struct sun4i_pwm_chip *pwm;
struct resource *res;
int ret;
- const struct of_device_id *match;
-
- match = of_match_device(sun4i_pwm_dt_ids, &pdev->dev);
pwm = devm_kzalloc(&pdev->dev, sizeof(*pwm), GFP_KERNEL);
if (!pwm)
return -ENOMEM;
+ pwm->data = of_device_get_match_data(&pdev->dev);
+ if (!pwm->data)
+ return -ENODEV;
+
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
pwm->base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(pwm->base))
@@ -385,7 +386,6 @@ static int sun4i_pwm_probe(struct platform_device *pdev)
if (IS_ERR(pwm->clk))
return PTR_ERR(pwm->clk);
- pwm->data = match->data;
pwm->chip.dev = &pdev->dev;
pwm->chip.ops = &sun4i_pwm_ops;
pwm->chip.base = -1;