[CRIU] [PATCH 1/3] check: Use errno to check for prctl error code (for brk setting)

[Pavel Emelyanov]

Signed-off-by: Pavel Emelyanov <xemul at virtuozzo.com>
---
 criu/cr-check.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/criu/cr-check.c b/criu/cr-check.c
index 2896b02..c252537 100644
--- a/criu/cr-check.c
+++ b/criu/cr-check.c
@@ -196,10 +196,10 @@ static int check_prctl(void)
 
 		ret = prctl(PR_SET_MM, PR_SET_MM_BRK, brk(0), 0, 0);
 		if (ret) {
-			if (ret == -EPERM)
+			if (errno == EPERM)
 				pr_msg("prctl: One needs CAP_SYS_RESOURCE capability to perform testing\n");
 			else
-				pr_msg("prctl: PR_SET_MM is not supported\n");
+				pr_msg("prctl: PR_SET_MM is not supported (errno %d)\n", errno);
 			return -1;
 		}
 
-- 
2.1.4