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-rw-r--r--tools/testing/selftests/x86/pkey-helpers.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/tools/testing/selftests/x86/pkey-helpers.h b/tools/testing/selftests/x86/pkey-helpers.h
index 3818f25391c2..b3cb7670e026 100644
--- a/tools/testing/selftests/x86/pkey-helpers.h
+++ b/tools/testing/selftests/x86/pkey-helpers.h
@@ -30,6 +30,7 @@ static inline void sigsafe_printf(const char *format, ...)
if (!dprint_in_signal) {
vprintf(format, ap);
} else {
+ int ret;
int len = vsnprintf(dprint_in_signal_buffer,
DPRINT_IN_SIGNAL_BUF_SIZE,
format, ap);
@@ -39,7 +40,9 @@ static inline void sigsafe_printf(const char *format, ...)
*/
if (len > DPRINT_IN_SIGNAL_BUF_SIZE)
len = DPRINT_IN_SIGNAL_BUF_SIZE;
- write(1, dprint_in_signal_buffer, len);
+ ret = write(1, dprint_in_signal_buffer, len);
+ if (ret < 0)
+ abort();
}
va_end(ap);
}