[obv] cppcheck: microblaze-tdep.c uninitialized var

[Jan Kratochvil <jan.kratochvil@redhat.com>]

Hi,

cppcheck complained
	[microblaze-tdep.c:565]: (error) Uninitialized variable: buf
and I find its complaint valid + obvious to fix, checked it in.

FYI I did not find any other cppcheck issue as valid in gdb/.


Thanks,
Jan


http://sourceware.org/ml/gdb-cvs/2012-02/msg00189.html

--- src/gdb/ChangeLog	2012/02/27 23:05:40	1.13874
+++ src/gdb/ChangeLog	2012/02/28 08:14:05	1.13875
@@ -1,3 +1,9 @@
+2012-02-28  Jan Kratochvil  <jan.kratochvil@redhat.com>
+
+	Fix static analysis issue found by cppcheck.
+	* microblaze-tdep.c (microblaze_extract_return_value): Fix
+	uninitialized BUF for size 2.
+
 2012-02-27  Chris Dearman  <chris@mips.com>
             Nathan Froyd  <froydnj@codesourcery.com>
             Maciej W. Rozycki  <macro@codesourcery.com>
--- src/gdb/microblaze-tdep.c	2012/02/02 20:19:16	1.8
+++ src/gdb/microblaze-tdep.c	2012/02/28 08:14:11	1.9
@@ -562,6 +562,7 @@
 	memcpy(valbuf, buf + MICROBLAZE_REGISTER_SIZE - 1, 1);
 	return;
       case 2:	/* return last 2 bytes in register.  */
+	regcache_cooked_read (regcache, MICROBLAZE_RETVAL_REGNUM, buf);
 	memcpy(valbuf, buf + MICROBLAZE_REGISTER_SIZE - 2, 2);
 	return;
       case 4:	/* for sizes 4 or 8, copy the required length.  */