[CRIU] [PATCH 05/14] Use pr_perror() on open() failure

[Kir Kolyshkin]

It makes sense to show errno to a user.

Signed-off-by: Kir Kolyshkin <kir at openvz.org>
---
 criu/namespaces.c | 2 +-
 criu/sk-unix.c    | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/criu/namespaces.c b/criu/namespaces.c
index 77308cc..01afca4 100644
--- a/criu/namespaces.c
+++ b/criu/namespaces.c
@@ -2210,7 +2210,7 @@ static int create_user_ns_hierarhy_fn(void *in_arg)
 		futex_set_and_wake(p_futex, NS__CREATED);
 		fd = open("/proc/self/ns/user", O_RDONLY);
 		if (fd < 0) {
-			pr_err("Can't get self user ns");
+			pr_perror("Can't get self user ns");
 			goto out;
 		}
 		me->user.nsfd_id = fdstore_add(fd);
diff --git a/criu/sk-unix.c b/criu/sk-unix.c
index a44d998..c0759dc 100644
--- a/criu/sk-unix.c
+++ b/criu/sk-unix.c
@@ -887,7 +887,7 @@ static int prep_unix_sk_cwd(struct unix_sk_info *ui, int *prev_cwd_fd, int *prev
 
 	*prev_cwd_fd = open(".", O_RDONLY);
 	if (*prev_cwd_fd < 0) {
-		pr_err("Can't open current dir\n");
+		pr_perror("Can't open current dir");
 		return -1;
 	}
 
@@ -896,7 +896,7 @@ static int prep_unix_sk_cwd(struct unix_sk_info *ui, int *prev_cwd_fd, int *prev
 			root = lookup_ns_by_id(root_item->ids->mnt_ns_id, &mnt_ns_desc);
 		*prev_root_fd = open("/", O_RDONLY);
 		if (*prev_root_fd < 0) {
-			pr_err("Can't open current root\n");
+			pr_perror("Can't open current root");
 			goto err;
 		}
 
-- 
2.9.3