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migration/qemu-file.c: Don't shift left into sign bit
author
Peter Maydell
<peter.maydell@linaro.org>
Tue, 23 Dec 2014 22:26:55 +0000
(22:26 +0000)
committer
Michael Tokarev
<mjt@tls.msk.ru>
Thu, 15 Jan 2015 07:44:13 +0000
(10:44 +0300)
Add a cast in qemu_get_be32() to avoid shifting left into the sign
bit of a signed integer (which is undefined behaviour in C).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
migration/qemu-file.c
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diff --git
a/migration/qemu-file.c
b/migration/qemu-file.c
index
d2d4007
..
a7f2a34
100644
(file)
--- a/
migration/qemu-file.c
+++ b/
migration/qemu-file.c
@@
-503,7
+503,7
@@
unsigned int qemu_get_be16(QEMUFile *f)
unsigned int qemu_get_be32(QEMUFile *f)
{
unsigned int v;
- v = qemu_get_byte(f) << 24;
+ v =
(unsigned int)
qemu_get_byte(f) << 24;
v |= qemu_get_byte(f) << 16;
v |= qemu_get_byte(f) << 8;
v |= qemu_get_byte(f);