commit fb626663da94ddbfae88900c62bf4a26534fbafa
author Chen Gang <gang.chen.5i5j@gmail.com> Sat May 10 20:51:24 2014 +0800
committer Juan Quintela <quintela@trasno.org> Wed May 14 15:24:51 2014 +0200
tree 515e95e955c378dc540562e7c760a26255c63eb6
parent f30d56e7d63fe2f536511bffa13306bec2e01c37

arch_init: Simplify code for load_xbzrle()

For xbzrle_decode_buffer(), when decoding contents will exceed writing
buffer, it will return -1, so need not check the return value whether
large than writing buffer.

And when failure occurs within load_xbzrle(), it always return -1
without any resources which need release.

So can remove the related checking statements, and also can remove 'rc'
and 'ret' local variables,

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>

arch_init.c

diff --git a/arch_init.c b/arch_init.c
index 995f56d..4e8f2c8 100644
--- a/arch_init.c
+++ b/arch_init.c
@@ -946,7 +946,6 @@
 
 static int load_xbzrle(QEMUFile *f, ram_addr_t addr, void *host)
 {
-    int ret, rc = 0;
     unsigned int xh_len;
     int xh_flags;
 
@@ -971,18 +970,13 @@
     qemu_get_buffer(f, xbzrle_decoded_buf, xh_len);
 
     /* decode RLE */
-    ret = xbzrle_decode_buffer(xbzrle_decoded_buf, xh_len, host,
-                               TARGET_PAGE_SIZE);
-    if (ret == -1) {
+    if (xbzrle_decode_buffer(xbzrle_decoded_buf, xh_len, host,
+                             TARGET_PAGE_SIZE) == -1) {
         fprintf(stderr, "Failed to load XBZRLE page - decode error!\n");
-        rc = -1;
-    } else  if (ret > TARGET_PAGE_SIZE) {
-        fprintf(stderr, "Failed to load XBZRLE page - size %d exceeds %d!\n",
-                ret, TARGET_PAGE_SIZE);
-        abort();
+        return -1;
     }
 
-    return rc;
+    return 0;
 }
 
 static inline void *host_from_stream_offset(QEMUFile *f,