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migration: Report error when shutdown fails 

This will help detect issues regarding I/O channels usage.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/r/20240304122844.1888308-7-clg@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
This commit is contained in:
Cédric Le Goater 2024-03-04 13:28:24 +01:00 committed by Peter Xu
parent 12ab1e4fe8
commit e8c44363fb
1 changed files with 4 additions and 1 deletions
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5
migration/qemu-file.c
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@ -63,6 +63,8 @@ struct QEMUFile {
*/ */
int qemu_file_shutdown(QEMUFile *f) int qemu_file_shutdown(QEMUFile *f)
{ {
Error *err = NULL;
/* /*
* We must set qemufile error before the real shutdown(), otherwise * We must set qemufile error before the real shutdown(), otherwise
* there can be a race window where we thought IO all went though * there can be a race window where we thought IO all went though
@ -91,7 +93,8 @@ int qemu_file_shutdown(QEMUFile *f)
return -ENOSYS; return -ENOSYS;
} }
if (qio_channel_shutdown(f->ioc, QIO_CHANNEL_SHUTDOWN_BOTH, NULL) < 0) { if (qio_channel_shutdown(f->ioc, QIO_CHANNEL_SHUTDOWN_BOTH, &err) < 0) {
error_report_err(err);
return -EIO; return -EIO;
} }