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| author | Alexander Sverdlin <[email protected]> | 2024-03-07 21:43:16 +0000 |
|---|---|---|
| committer | Bartosz Golaszewski <[email protected]> | 2024-03-08 09:32:00 +0000 |
| commit | 8636f19c2d1f8199b27b4559d9caa115b3011f06 (patch) | |
| tree | d64caa721f6799f2e8c9dbb090abae7f2b019ea1 /tools/perf/scripts/python/arm-cs-trace-disasm.py | |
| parent | selftest: gpio: remove obsolete gpio-mockup test (diff) | |
| download | kernel-8636f19c2d1f8199b27b4559d9caa115b3011f06.tar.gz kernel-8636f19c2d1f8199b27b4559d9caa115b3011f06.zip | |
gpio: sysfs: repair export returning -EPERM on 1st attempt
It would make sense to return -EPERM if the bit was already set (already
used), not if it was cleared. Before this fix pins can only be exported on
the 2nd attempt:
$ echo 522 > /sys/class/gpio/export
sh: write error: Operation not permitted
$ echo 522 > /sys/class/gpio/export
Fixes: 35b545332b80 ("gpio: remove gpio_lock")
Signed-off-by: Alexander Sverdlin <[email protected]>
Signed-off-by: Bartosz Golaszewski <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/arm-cs-trace-disasm.py')
0 files changed, 0 insertions, 0 deletions