use g_path_get_dirname instead of dirname

Use g_path_get_basename to get the directory components of
a file name, and free its return when no longer needed.

Signed-off-by: Wei Jiangang <weijg.fnst@cn.fujitsu.com>
Message-Id: <1459997185-15669-3-git-send-email-weijg.fnst@cn.fujitsu.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/os-posix.c b/os-posix.c
index 3755265..c6ddb7d 100644
--- a/os-posix.c
+++ b/os-posix.c
@@ -89,7 +89,7 @@ char *os_find_datadir(void)
     if (exec_dir == NULL) {
         return NULL;
     }
-    dir = dirname(exec_dir);
+    dir = g_path_get_dirname(exec_dir);
 
     max_len = strlen(dir) +
         MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
@@ -103,6 +103,7 @@ char *os_find_datadir(void)
         }
     }
 
+    g_free(dir);
     g_free(exec_dir);
     return res;
 }