commit 45eba0ab7d26435121facb68847fbd0cd4a313c1
Author: Andreas Arnez <arnez@linux.vnet.ibm.com>
Date:   Thu May 4 11:06:10 2017 +0200

    Remove some superfluous code in corelow.c
    
    In corelow.c I stumbled upon an extra semicolon and an xfree of a NULL
    pointer.  Remove them.
    
    gdb/ChangeLog:
    
            * corelow.c (sniff_core_bfd): Remove extra semicolon.
            (get_core_register_section): Remove xfree of NULL pointer.

diff --git gdb/corelow.c gdb/corelow.c
index 3267c37843..2266f2467a 100644
--- gdb/corelow.c
+++ gdb/corelow.c
@@ -129,7 +129,7 @@ sniff_core_bfd (bfd *abfd)
 {
   struct core_fns *cf;
   struct core_fns *yummy = NULL;
-  int matches = 0;;
+  int matches = 0;
 
   /* Don't sniff if we have support for register sets in
      CORE_GDBARCH.  */
@@ -511,7 +511,7 @@ get_core_register_section (struct regcache *regcache,
 			   const char *human_name,
 			   int required)
 {
-  static char *section_name = NULL;
+  static char *section_name;
   struct bfd_section *section;
   bfd_size_type size;
   char *contents;
@@ -519,8 +519,6 @@ get_core_register_section (struct regcache *regcache,
 				&& regset->flags & REGSET_VARIABLE_SIZE);
   ptid_t ptid = regcache_get_ptid (regcache);
 
-  xfree (section_name);
-
   if (ptid_get_lwp (ptid))
     section_name = xstrprintf ("%s/%ld", name,
 			       ptid_get_lwp (ptid));