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drivers/rtc/rtc-hid-sensor-time.c: improve error handling when rtc register fails

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Stop processing hid input when registering the RTC fails and handle a NULL
returned from devm_rtc_device_register() as a failure too.

Signed-off-by: Alexander Holler <holler@ahsoftware.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alexander Holler 2013-09-11 14:24:20 -07:00 committed by Linus Torvalds
parent 666a584d3a
commit 7707bda3ee
1 changed files with 4 additions and 2 deletions
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6
drivers/rtc/rtc-hid-sensor-time.c
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@ -279,9 +279,11 @@ static int hid_time_probe(struct platform_device *pdev)
"hid-sensor-time", &hid_time_rtc_ops,
THIS_MODULE);
if (IS_ERR(time_state->rtc)) {
if (IS_ERR_OR_NULL(time_state->rtc)) {
ret = time_state->rtc ? PTR_ERR(time_state->rtc) : -ENODEV;
time_state->rtc = NULL;
sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_TIME);
dev_err(&pdev->dev, "rtc device register failed!\n");
return PTR_ERR(time_state->rtc);
}
return ret;