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block/raw-win32: Always use -errno in hdev_open 

On one occasion, hdev_open() returned -1 in case of an unknown error
instead of a proper -errno value. Adjust this to match the behavior of
raw_open() (in raw-win32), which is to return -EINVAL in this case.
Also, change the call to error_setg*() to match the one in raw_open() as
well.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Max Reitz 2013-10-11 14:30:16 +02:00 committed by Stefan Hajnoczi
parent a7fdbcf0e6
commit 45d57f6e71
1 changed files with 2 additions and 3 deletions
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block/raw-win32.c
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@ -590,12 +590,11 @@ static int hdev_open(BlockDriverState *bs, QDict *options, int flags,
int err = GetLastError();
if (err == ERROR_ACCESS_DENIED) {
error_setg_errno(errp, EACCES, "Could not open device");
ret = -EACCES;
} else {
error_setg(errp, "Could not open device");
ret = -1;
ret = -EINVAL;
}
error_setg_errno(errp, -ret, "Could not open device");
goto done;
}