File softmmu-physmem-Simplify-flatview_write-.patch of Package qemu.37352

From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= <philmd@redhat.com>
Date: Wed, 15 Dec 2021 19:24:20 +0100
Subject: softmmu/physmem: Simplify flatview_write and
 address_space_access_valid
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Git-commit: 58e74682baf4e1ad26b064d8c02e5bc99c75c5d9
References: bsc#1190011 (CVE-2021-3750)

Remove unuseful local 'result' variables.

Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Alexander Bulekov <alxndr@bu.edu>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211215182421.418374-3-philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Dario Faggioli <dfaggioli@suse.com>
---
 softmmu/physmem.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/softmmu/physmem.c b/softmmu/physmem.c
index d1e6baffeaaa543d790189adff80..4599d1480a922de94be4eb0bbc53 100644
--- a/softmmu/physmem.c
+++ b/softmmu/physmem.c
@@ -2805,14 +2805,11 @@ static MemTxResult flatview_write(FlatView *fv, hwaddr addr, MemTxAttrs attrs,
     hwaddr l;
     hwaddr addr1;
     MemoryRegion *mr;
-    MemTxResult result = MEMTX_OK;
 
     l = len;
     mr = flatview_translate(fv, addr, &addr1, &l, true, attrs);
-    result = flatview_write_continue(fv, addr, attrs, buf, len,
-                                     addr1, l, mr);
-
-    return result;
+    return flatview_write_continue(fv, addr, attrs, buf, len,
+                                   addr1, l, mr);
 }
 
 /* Called within RCU critical section.  */
@@ -3109,12 +3106,10 @@ bool address_space_access_valid(AddressSpace *as, hwaddr addr,
                                 MemTxAttrs attrs)
 {
     FlatView *fv;
-    bool result;
 
     RCU_READ_LOCK_GUARD();
     fv = address_space_to_flatview(as);
-    result = flatview_access_valid(fv, addr, len, is_write, attrs);
-    return result;
+    return flatview_access_valid(fv, addr, len, is_write, attrs);
 }
 
 static hwaddr