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| author |   Geert Uytterhoeven <geert+renesas@glider.be> | 2016-02-19 11:00:50 +0100 |
|---|---|---|
| committer |   Linus Walleij <linus.walleij@linaro.org> | 2016-02-25 10:04:25 +0100 |
| commit | 40c8eabac43db862810367edb2fe9ec7f69e814e (patch) | |
| tree | 60c535a4724dd17d41aea2d330dc26d6e79715c2 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | tools: gpio: Small updates for output format (diff) | |
| download | linux-dev-40c8eabac43db862810367edb2fe9ec7f69e814e.tar.xz linux-dev-40c8eabac43db862810367edb2fe9ec7f69e814e.zip | |
gpio: Propagate all errors in devm_get_gpiod_from_child()
devm_get_gpiod_from_child() tries several property suffixes to find a
GPIO descriptor. If all suffixes fail and no probe deferral has been
detected, it returns the error of the last try.
However, if any but the last try fails with a real error (e.g. -EBUSY),
this error is not propagated, and -ENOENT will be returned.
This confuses drivers that e.g. want to detect if a GPIO is already in
use.
To fix this, change the loop logic to continue on -ENOENT, which
indicates the property was not found and the next suffix should be
tried, and propagate all other detected errors.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions