create_win_dump() and write_run report qemu_write_full() failure to
their callers as
An IO error has occurred
The errno set by qemu_write_full() is lost.
Improve this to
win-dump: failed to write header: <description of errno>
and
win-dump: failed to save memory: <description of errno>
This matches how dump.c reports similar errors.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
dump/win_dump.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/dump/win_dump.c b/dump/win_dump.c
index b7bfaff379..0e4fe692ce 100644
--- a/dump/win_dump.c
+++ b/dump/win_dump.c
@@ -12,7 +12,6 @@
#include "sysemu/dump.h"
#include "qapi/error.h"
#include "qemu/error-report.h"
-#include "qapi/qmp/qerror.h"
#include "exec/cpu-defs.h"
#include "hw/core/cpu.h"
#include "qemu/win_dump_defs.h"
@@ -52,6 +51,7 @@ static size_t write_run(uint64_t base_page, uint64_t
page_count,
uint64_t addr = base_page << TARGET_PAGE_BITS;
uint64_t size = page_count << TARGET_PAGE_BITS;
uint64_t len, l;
+ int eno;
size_t total = 0;
while (size) {
@@ -65,9 +65,10 @@ static size_t write_run(uint64_t base_page, uint64_t
page_count,
}
l = qemu_write_full(fd, buf, len);
+ eno = errno;