diff options
| author | Alexey Khoroshilov <khoroshilov@ispras.ru> | 2017-11-18 00:15:58 +0300 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2017-11-29 22:11:13 +0100 |
| commit | f2eef045de9defbc6fc6b72b17f0941cbe26c81d (patch) | |
| tree | b4281bfd081a6aede1d53e3267ae796f75bf2b66 /drivers/rtc/rtc-brcmstb-waketimer.c | |
| parent | 4fbd8d194f06c8a3fd2af1ce560ddb31f7ec8323 (diff) | |
| download | lwn-f2eef045de9defbc6fc6b72b17f0941cbe26c81d.tar.gz lwn-f2eef045de9defbc6fc6b72b17f0941cbe26c81d.zip | |
rtc: brcmstb-waketimer: fix error handling in brcmstb_waketmr_probe()
brcmstb_waketmr_probe() does not disable timer->clk on error paths.
Found by Linux Driver Verification project (linuxtesting.org).
Fixes: c4f07ecee22e ("rtc: brcmstb-waketimer: Add Broadcom STB wake-timer")
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Diffstat (limited to 'drivers/rtc/rtc-brcmstb-waketimer.c')
| -rw-r--r-- | drivers/rtc/rtc-brcmstb-waketimer.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/rtc/rtc-brcmstb-waketimer.c b/drivers/rtc/rtc-brcmstb-waketimer.c index 796ac792a381..6cee61201c30 100644 --- a/drivers/rtc/rtc-brcmstb-waketimer.c +++ b/drivers/rtc/rtc-brcmstb-waketimer.c @@ -253,7 +253,7 @@ static int brcmstb_waketmr_probe(struct platform_device *pdev) ret = devm_request_irq(dev, timer->irq, brcmstb_waketmr_irq, 0, "brcmstb-waketimer", timer); if (ret < 0) - return ret; + goto err_clk; timer->reboot_notifier.notifier_call = brcmstb_waketmr_reboot; register_reboot_notifier(&timer->reboot_notifier); @@ -262,12 +262,21 @@ static int brcmstb_waketmr_probe(struct platform_device *pdev) &brcmstb_waketmr_ops, THIS_MODULE); if (IS_ERR(timer->rtc)) { dev_err(dev, "unable to register device\n"); - unregister_reboot_notifier(&timer->reboot_notifier); - return PTR_ERR(timer->rtc); + ret = PTR_ERR(timer->rtc); + goto err_notifier; } dev_info(dev, "registered, with irq %d\n", timer->irq); + return 0; + +err_notifier: + unregister_reboot_notifier(&timer->reboot_notifier); + +err_clk: + if (timer->clk) + clk_disable_unprepare(timer->clk); + return ret; } |