2 files changed, 4 insertions, 4 deletions
diff --git a/nis/nss-nis.h b/nis/nss-nis.h
index 8d5ff5619a..a6071963c6 100644
--- a/nis/nss-nis.h
+++ b/nis/nss-nis.h
@@ -31,9 +31,9 @@ extern const unsigned int __yperr2nss_count;
 static inline enum nss_status
 yperr2nss (int errval)
 {
-  if ((unsigned int) errval > __yperr2nss_count)
+  if ((unsigned int) errval >= __yperr2nss_count)
     return NSS_STATUS_UNAVAIL;
-  return __yperr2nss_tab[errval];
+  return __yperr2nss_tab[(unsigned int) errval];
 }
 
 #endif /* nis/nss-nis.h */
diff --git a/nis/nss-nisplus.h b/nis/nss-nisplus.h
index 436a2e6e20..1c034c0861 100644
--- a/nis/nss-nisplus.h
+++ b/nis/nss-nisplus.h
@@ -32,9 +32,9 @@ extern const unsigned int __niserr2nss_count;
 static inline enum nss_status
 niserr2nss (int errval)
 {
-  if ((unsigned int) errval > __niserr2nss_count)
+  if ((unsigned int) errval >= __niserr2nss_count)
     return NSS_STATUS_UNAVAIL;
-  return __niserr2nss_tab[errval];
+  return __niserr2nss_tab[(unsigned int) errval];
 }
 
 #endif /* nis/nss-nisplus.h */