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random-seed: fix wrong error variable in log_error_errno()

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At line 285, ftruncate() failure was logged using 'r' which is 0
from the preceding successful loop_write() call. log_error_errno(0, ...)
triggers an assertion crash in developer builds (ASSERT_NON_ZERO) and
silently returns success in release builds, swallowing the ftruncate error.

Replace with errno which is set by ftruncate() on failure.

Signed-off-by: dongshengyuan <dongshengyuan@uniontech.com>
Co-developed-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
dongshengyuan
2026-06-15 15:43:51 +08:00
committed by Daan De Meyer
parent da2ed93b65
commit 2ef8fb91cc
1 changed files with 1 additions and 1 deletions
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2
src/random-seed/random-seed-tool.c
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@@ -282,7 +282,7 @@ static int save_seed_file(
return log_error_errno(r, "Failed to write new random seed file: %m");
if (ftruncate(seed_fd, k) < 0)
return log_error_errno(r, "Failed to truncate random seed file: %m");
return log_error_errno(errno, "Failed to truncate random seed file: %m");
r = fsync_full(seed_fd);
if (r < 0)