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media: cros-ec-cec: do not bail on device_init_wakeup failure 

Do not fail probing when device_init_wakeup fails.

device_init_wakeup fails when the device is already enabled as wakeup
device. Hence, the driver fails to probe the device if:
- The device has already been enabled for wakeup (by e.g. sysfs)
- The driver has been unloaded and is being loaded again.

This goal of the patch is to fix the above cases.

Overwhelming majority of the drivers do not check device_init_wakeup
return code.

Fixes: cd70de2d35 ("media: platform: Add ChromeOS EC CEC driver")
Signed-off-by: Dariusz Marcinkiewicz <darekm@google.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Dariusz Marcinkiewicz 2020-06-22 13:46:36 +02:00 committed by Mauro Carvalho Chehab
parent 0f879bab72
commit 6f01dfb760
1 changed files with 1 additions and 5 deletions
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6
drivers/media/cec/platform/cros-ec/cros-ec-cec.c
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@ -277,11 +277,7 @@ static int cros_ec_cec_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, cros_ec_cec);
cros_ec_cec->cros_ec = cros_ec;
ret = device_init_wakeup(&pdev->dev, 1);
if (ret) {
dev_err(&pdev->dev, "failed to initialize wakeup\n");
return ret;
}
device_init_wakeup(&pdev->dev, 1);
cros_ec_cec->adap = cec_allocate_adapter(&cros_ec_cec_ops, cros_ec_cec,
DRV_NAME,