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usb: chipidea: imx: properly check for usbmisc 

If usbmisc hasn't probed yet, defer the probe.

It's not enough to check if the platform device for the OF node of the
usbmisc has been registered, but it also needs to have been probed
already before we can call imx_usbmisc_init().

This can happen if the order in which devices are probed change due to
async probing or on-demand probing of dependencies.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
This commit is contained in:
Tomeu Vizoso 2015-08-06 15:09:54 +02:00 committed by Peter Chen
parent bc24937943
commit ef12da914e
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/chipidea/ci_hdrc_imx.c
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@ -104,7 +104,7 @@ static struct imx_usbmisc_data *usbmisc_get_init_data(struct device *dev)
misc_pdev = of_find_device_by_node(args.np);
of_node_put(args.np);
if (!misc_pdev)
if (!misc_pdev || !platform_get_drvdata(misc_pdev))
return ERR_PTR(-EPROBE_DEFER);
data->dev = &misc_pdev->dev;