[PATCH] check: Check for pipe return value in check_unaligned_vmsplice

[Cyrill Gorcunov]

| cr-check.c: In function ‘check_unaligned_vmsplice’:
| cr-check.c:372:2: error: ignoring return value of ‘pipe’, declared with attribute warn_unused_result [-Werror=unused-result]

Signed-off-by: Cyrill Gorcunov <gorcunov at openvz.org>
---
 cr-check.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/cr-check.c b/cr-check.c
index 95b3255..89a8589 100644
--- a/cr-check.c
+++ b/cr-check.c
@@ -369,7 +369,11 @@ static int check_unaligned_vmsplice(void)
 	char buf; /* :) */
 	struct iovec iov;
 
-	pipe(p);
+	ret = pipe(p);
+	if (ret < 0) {
+		pr_perror("Can't create pipe");
+		return -1;
+	}
 	iov.iov_base = &buf;
 	iov.iov_len = sizeof(buf);
 	ret = vmsplice(p[1], &iov, 1, SPLICE_F_GIFT | SPLICE_F_NONBLOCK);
-- 
1.8.1.2


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