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| author | Linus Walleij <linus.walleij@linaro.org> | 2019-02-17 23:59:33 +0300 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2019-02-17 23:59:33 +0300 |
| commit | 8fab3d713ca36bf4ad4dadec0bf38f5e70b8999d (patch) | |
| tree | 18cdadced0870584ceffa02eed47f4c86da8263c /drivers/gpio/gpiolib.c | |
| parent | 760a160e8b899f5ebcab99da17feebbe40ec42f1 (diff) | |
| parent | 68b7587baabfa42ca5625b709691358fee51b9d8 (diff) | |
| download | linux-8fab3d713ca36bf4ad4dadec0bf38f5e70b8999d.tar.xz | |
Merge tag 'gpio-v5.1-updates-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into devel
gpio updates for v5.1
- support for a new variant of pca953x
- documentation fix from Wolfram
- some tegra186 name changes
- two minor fixes for madera and altera-a10sr
Diffstat (limited to 'drivers/gpio/gpiolib.c')
| -rw-r--r-- | drivers/gpio/gpiolib.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 9be4c9401172..144af0733581 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -828,7 +828,14 @@ static irqreturn_t lineevent_irq_thread(int irq, void *p) /* Do not leak kernel stack to userspace */ memset(&ge, 0, sizeof(ge)); - ge.timestamp = le->timestamp; + /* + * We may be running from a nested threaded interrupt in which case + * we didn't get the timestamp from lineevent_irq_handler(). + */ + if (!le->timestamp) + ge.timestamp = ktime_get_real_ns(); + else + ge.timestamp = le->timestamp; if (le->eflags & GPIOEVENT_REQUEST_RISING_EDGE && le->eflags & GPIOEVENT_REQUEST_FALLING_EDGE) { |