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rtc: stmp3xxx: print message on error 

stmp3xxx_wdt_register() can fail as platform_device_alloc() or
platform_device_add() can fail. But when it fails it failed silently.
Lets print out an error message on failure so that user will atlest
know that there was some error.

Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
This commit is contained in:
Sudip Mukherjee 2016-04-30 20:11:30 +01:00 committed by Alexandre Belloni
parent 6fca3fc516
commit 3497610a45
1 changed files with 6 additions and 1 deletions
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7
drivers/rtc/rtc-stmp3xxx.c
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@ -107,14 +107,19 @@ static struct stmp3xxx_wdt_pdata wdt_pdata = {
static void stmp3xxx_wdt_register(struct platform_device *rtc_pdev)
{
int rc = -1;
struct platform_device *wdt_pdev =
platform_device_alloc("stmp3xxx_rtc_wdt", rtc_pdev->id);
if (wdt_pdev) {
wdt_pdev->dev.parent = &rtc_pdev->dev;
wdt_pdev->dev.platform_data = &wdt_pdata;
platform_device_add(wdt_pdev);
rc = platform_device_add(wdt_pdev);
}
if (rc)
dev_err(&rtc_pdev->dev,
"failed to register stmp3xxx_rtc_wdt\n");
}
#else
static void stmp3xxx_wdt_register(struct platform_device *rtc_pdev)