LU-3527 nodemap: add nodemap kernel module

[fs/lustre-release.git] / lustre / utils / liblustreapi.c

diff --git a/lustre/utils/liblustreapi.c b/lustre/utils/liblustreapi.c
index 461af1e..0a9f684 100644 (file)
--- a/lustre/utils/liblustreapi.c
+++ b/lustre/utils/liblustreapi.c
@@ -397,7 +397,7 @@ static int find_poolpath(char *fsname, char *poolname, char *poolpath)
   * Return 0 for success, with a NUL-terminated string in \param result.
   * Return -ve value for error.
   */
-static int get_param(const char *param_path, char *result,
+int get_param(const char *param_path, char *result,
                      unsigned int result_size)
 {
         char file[PATH_MAX + 1], pattern[PATH_MAX + 1], buf[result_size];
@@ -407,7 +407,7 @@ static int get_param(const char *param_path, char *result,
         snprintf(pattern, PATH_MAX, "/proc/{fs,sys}/{lnet,lustre}/%s",
                  param_path);
         rc = first_match(pattern, file);
-        if (rc)
+       if (rc != 0 || result == NULL)
                 return rc;
 
         fp = fopen(file, "r");