gpio: selftests: gpio-mockup-chardev GPIOHANDLE_REQUEST_OUTPUT fix

Following logic from commit: 22f6592b23, GPIOHANDLE_REQUEST_OUTPUT
should handle errors same way as GPIOHANDLE_REQUEST_INPUT does, or else
the following error occurs:

gpio-mockup-chardev: gpio<gpiochip1> line<0> test flag<0x2> value<0>: No
such file or directory

despite the real result of gpio_pin_test(), gpio_debugfs_get() and
gpiotools_request_linehandle() functions.

Signed-off-by: Rafael David Tinoco <rafael.tinoco@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Rafael David Tinoco 2018-06-06 14:44:24 -03:00 committed by Linus Walleij
parent 8853daf3b4
commit 76411a0d97

View File

@ -225,10 +225,10 @@ int gpio_pin_test(struct gpiochip_info *cinfo, int line, int flag, int value)
if (flag & GPIOHANDLE_REQUEST_ACTIVE_LOW)
debugfs_value = !debugfs_value;
if (!(debugfs_dir == OUT && value == debugfs_value))
if (!(debugfs_dir == OUT && value == debugfs_value)) {
errno = -EINVAL;
ret = -errno;
ret = -errno;
}
}
gpiotools_release_linehandle(fd);