[cgfsng] show wrong errno

lxc_cgroup_set_data: h = get_hierarchy(controller); if h is NULL, now errno is old, it donot set new one. And then, cgfsng_setup_limits: if (lxc_cgroup_set_data(cg->subsystem, cg->value, d)) { if (do_devices && (errno == EACCES || errno == EPERM)) { WARN("Error setting %s to %s for %s", cg->subsystem, cg->value, d->name); continue; } SYSERROR("Error setting %s to %s for %s", cg->subsystem, cg->value, d->name); goto out; } SYSERROR will show old errno, make me confused. Signed-off-by: duguhaotian <duguhaotian@gmail.com>

[cgfsng] show wrong errno
d1d02d49 · duguhaotian · Christian Brauner · 509862e9 · d1d02d49
Unverified Commit d1d02d49 authored Jan 26, 2018 by duguhaotian Committed by Christian Brauner Feb 06, 2018
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cgfsng.c src/lxc/cgroups/cgfsng.c +1 -0

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--- a/src/lxc/cgroups/cgfsng.c
+++ b/src/lxc/cgroups/cgfsng.c
@@ -2119,6 +2119,7 @@ static int lxc_cgroup_set_data(const char *filename, const char *value, struct c
 		      "The controller seems to be unused by \"cgfsng\" cgroup "
 		      "driver or not enabled on the cgroup hierarchy",
 		      controller);
+		errno = ENOENT;
 		return -1;
 	}