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The de_wait() helpers currently return -1 on timeout and callers discard error codes by always returning -1. This series replaces -1 with -ETIMEDOUT and propagates the error code to improve error reporting. Patch 1 replaces -1 with -ETIMEDOUT in de_wait() helpers. Patch 2 propagates error codes in callers instead of returning -1. Hungyu Lin (2): staging: sm750fb: return -ETIMEDOUT on timeout in de_wait functions staging: sm750fb: propagate error codes from de_wait() drivers/staging/sm750fb/sm750_accel.c | 22 ++++++++++++---------- drivers/staging/sm750fb/sm750_hw.c | 4 ++-- 2 files changed, 14 insertions(+), 12 deletions(-) -- 2.34.1