The clock_adj call returns the clock state on success, which may be a
non-zero value (e.g. TIME_INS), but the modified timex data is copied
back to the user only when zero value (TIME_OK) was returned. Fix the
condition to copy the data also with positive return values.
Signed-off-by: Miroslav Lichvar <mlich...@redhat.com>
---
kernel/posix-timers.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c
index 69185ae..10349d5 100644
--- a/kernel/posix-timers.c
+++ b/kernel/posix-timers.c
@@ -997,7 +997,7 @@ SYSCALL_DEFINE2(clock_adjtime, const clockid_t, which_clock,
err = kc->clock_adj(which_clock, &ktx);
- if (!err && copy_to_user(utx, &ktx, sizeof(ktx)))
+ if (err >= 0 && copy_to_user(utx, &ktx, sizeof(ktx)))
return -EFAULT;
return err;
--
1.7.11.7
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