lxc: Distinguish pthread_mutex_unlock error messages

The same message exists in lxclock.c and cgmanager.c, so print the filename along with the message. Before this patch: lxc-destroy -n u1 pthread_mutex_unlock returned:1 Operation not permitted After this patch: xc-destroy -n u1 lxclock.c: pthread_mutex_unlock returned:1 Operation not permitted Signed-off-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com>

lxc: Distinguish pthread_mutex_unlock error messages
bd18ea05 · Marcos Paulo de Souza · Christian Brauner · ca4bad79 · bd18ea05 · bd18ea05
Unverified Commit bd18ea05 authored Dec 08, 2017 by Marcos Paulo de Souza Committed by Christian Brauner Dec 15, 2017
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Showing with 4 additions and 2 deletions

cgmanager.c src/lxc/cgroups/cgmanager.c +2 -1

lxclock.c src/lxc/lxclock.c +2 -1

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--- a/src/lxc/cgroups/cgmanager.c
+++ b/src/lxc/cgroups/cgmanager.c
@@ -88,7 +88,8 @@ static void unlock_mutex(pthread_mutex_t *l)
 	int ret;
 	if ((ret = pthread_mutex_unlock(l)) != 0) {
-		fprintf(stderr, "pthread_mutex_unlock returned:%d %s\n", ret, strerror(ret));
+		fprintf(stderr, "%s: pthread_mutex_unlock returned:%d %s\n",
+				__FILE__, ret, strerror(ret));
 		exit(1);
 	}
 }

--- a/src/lxc/lxclock.c
+++ b/src/lxc/lxclock.c
@@ -84,7 +84,8 @@ static void unlock_mutex(pthread_mutex_t *l)
 	int ret;
 	if ((ret = pthread_mutex_unlock(l)) != 0) {
-		fprintf(stderr, "pthread_mutex_unlock returned:%d %s\n", ret, strerror(ret));
+		fprintf(stderr, "%s: pthread_mutex_unlock returned:%d %s\n",
+				__FILE__, ret, strerror(ret));
 		dump_stacktrace();
 		exit(EXIT_FAILURE);
 	}