diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 8a45894e23b..b5ca30f5870 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,7 @@
+2010-04-27  Joel Brobecker  <brobecker@adacore.com>
+
+	* solib-svr4.c (solib_svr4_r_map): Expand function description.
+
 2010-04-27  Joel Brobecker  <brobecker@adacore.com>
 
 	* symfile.c (init_filename_language_table): Register .dg files
diff --git a/gdb/solib-svr4.c b/gdb/solib-svr4.c
index 3ff4243c9b8..1928af0a24c 100644
--- a/gdb/solib-svr4.c
+++ b/gdb/solib-svr4.c
@@ -869,7 +869,8 @@ locate_base (struct svr4_info *info)
 }
 
 /* Find the first element in the inferior's dynamic link map, and
-   return its address in the inferior.
+   return its address in the inferior.  Return zero if the address
+   could not be determined.
 
    FIXME: Perhaps we should validate the info somehow, perhaps by
    checking r_version for a known version number, or r_state for