Report errors in write_config

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

diff --git a/lttng/conf.c b/lttng/conf.c
index 526988468aa93ac6a576f92f3a1c27416e1c5822..5479a3cd016e740100d14198e210d45769da013d 100644 (file)
--- a/lttng/conf.c
+++ b/lttng/conf.c
@@ -102,21 +102,26 @@ error:
  *
  *  Append data to the config file in file_path
  */
-static void write_config(char *file_path, size_t size, char *data)
+static int write_config(char *file_path, size_t size, char *data)
 {
        FILE *fp;
+       size_t len;
+       int ret = 0;
 
        fp = open_config(file_path, "a");
        if (fp == NULL) {
-               goto error;
+               ret = -1;
+               goto end;
        }
 
        /* Write session name into config file */
-       fwrite(data, size, 1, fp);
+       len = fwrite(data, size, 1, fp);
+       if (len < 1) {
+               ret = -1;
+       }
        fclose(fp);
-
-error:
-       return;
+end:
+       return ret;
 }
 
 /*
@@ -209,10 +214,7 @@ int config_add_session_name(char *path, char *name)
        if (ret < 0) {
                goto error;
        }
-
-       write_config(path, ret, session_name);
-       ret = 0;
-
+       ret = write_config(path, ret, session_name);
 error:
        return ret;
 }