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pwm: omap-dmtimer: Return -EPROBE_DEFER if no dmtimer platform data

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commit 43725feb59 upstream.

If a pwm-omap-dmtimer is probed before the dmtimer it uses, the platform
data won't be set yet.

Fixes: ac30751df9 ("ARM: OMAP: pdata-quirks: Remove unused timer pdata")
Cc: <stable@vger.kernel.org> # 4.17+
Signed-off-by: David Rivshin <drivshin@allworx.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Tested-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Ladislav Michl <ladis@linux-mips.org>
Tested-by: Andreas Kemnade <andreas@kemnade.info>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
David Rivshin
2018-09-09 10:32:38 +02:00
committed by Greg Kroah-Hartman
parent 1ba930714d
commit 6bdfc65b50
1 changed files with 3 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/pwm/pwm-omap-dmtimer.c
+3 -2
View File
@@ -264,8 +264,9 @@ static int pwm_omap_dmtimer_probe(struct platform_device *pdev)
timer_pdata = dev_get_platdata(&timer_pdev->dev);
if (!timer_pdata) {
dev_err(&pdev->dev, "dmtimer pdata structure NULL\n");
ret = -EINVAL;
dev_dbg(&pdev->dev,
"dmtimer pdata structure NULL, deferring probe\n");
ret = -EPROBE_DEFER;
goto put;
}