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| author | Surendra Singh Chouhan <kr494167@gmail.com> | 2026-07-23 07:59:43 +0530 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2026-07-24 18:18:47 -0700 |
| commit | e640910640676b88883db616c78bd26dc9eab428 (patch) | |
| tree | d9277b4fc0cc3cdfe5d1bc1eb635d5bf054cf692 /tools/perf/scripts/python/bin/task-analyzer-report | |
| parent | 0aa7c205e901ad75f4785f786b32a2b01b896a9b (diff) | |
Input: charlieplex_keypad - check gpiod_direction_output() return value
charlieplex_keypad_scan_line() currently ignores the return value of
gpiod_direction_output() when setting the active output line for scanning.
If setting the GPIO direction fails (e.g. on I2C/SPI GPIO expanders or
hardware errors), the function continues to sleep and read input values
from an improperly configured GPIO line.
Fix this by capturing the return value of gpiod_direction_output() and
returning the error code immediately if it fails.
Fixes: 2ca45e57ea02 ("Input: charlieplex_keypad - add GPIO charlieplex keypad")
Signed-off-by: Surendra Singh Chouhan <kr494167@gmail.com>
Link: https://patch.msgid.link/20260723022943.9337-1-kr494167@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'tools/perf/scripts/python/bin/task-analyzer-report')
0 files changed, 0 insertions, 0 deletions