If there is an I/O error on stdout, return a non-zero status so that udev can avoid trusting the values printed. Deeper changes to the log code are out of scope for this patch. --- libdm/dm-tools/dmsetup.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/libdm/dm-tools/dmsetup.c b/libdm/dm-tools/dmsetup.c
index d01b8f2..0449e40 100644
--- a/libdm/dm-tools/dmsetup.c
+++ b/libdm/dm-tools/dmsetup.c
@@ -7491,5 +7491,7 @@ out:
if (_initial_timestamp)
dm_timestamp_destroy(_initial_timestamp);
+ if (fflush(stdout) || ferror(stdout))
+ return 1;
return (_switches[HELP_ARG] || _switches[VERSION_ARG]) ? 0 : ret;
}
--
Sincerely,
Demi Marie Obenour (she/her/hers)
Invisible Things Lab
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