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[Libunwind-devel] [PATCH 06/19] Remove free() NULL pointer checks in loa

From: Tommi Rantala
Subject: [Libunwind-devel] [PATCH 06/19] Remove free() NULL pointer checks in load_debug_frame() error path
Date: Wed, 5 Sep 2012 14:50:14 +0300

Just pass potentially NULL pointers to free() in the error path in
load_debug_frame(). Saved 40 bytes of code in on ARM -O2
thumb build at the expense of slightly slower execution.
 src/dwarf/Gfind_proc_info-lsb.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/dwarf/Gfind_proc_info-lsb.c b/src/dwarf/Gfind_proc_info-lsb.c
index de9ce1c..5305a5a 100644
--- a/src/dwarf/Gfind_proc_info-lsb.c
+++ b/src/dwarf/Gfind_proc_info-lsb.c
@@ -226,9 +226,9 @@ load_debug_frame (const char *file, char **buf, size_t 
*bufsize, int is_local)
 /* An error reading image file. Release resources and return error code */
-  if (stringtab) free(stringtab);
-  if (sec_hdrs) free(sec_hdrs);
-  if (linkbuf) free(linkbuf);
+  free(stringtab);
+  free(sec_hdrs);
+  free(linkbuf);
   return 1;

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