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authorPaolo Bonzini <pbonzini@redhat.com>2012-04-12 14:01:01 +0200
committerKevin Wolf <kwolf@redhat.com>2012-05-10 10:32:11 +0200
commit5f3777945d22248d805fb7c134e206c2d943b77b (patch)
treea150d2fad9a831d7497b152cc6f88691bc4081d6 /block
parente86fe18ac945a121a548347c48f2397d7a2e5be5 (diff)
block: push bdrv_change_backing_file error checking up from drivers
This check applies to all drivers, but QED lacks it. Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block')
-rw-r--r--block/qcow2.c5
1 files changed, 0 insertions, 5 deletions
diff --git a/block/qcow2.c b/block/qcow2.c
index ee4678f6ed..3bae2d837e 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -1011,11 +1011,6 @@ fail:
static int qcow2_change_backing_file(BlockDriverState *bs,
const char *backing_file, const char *backing_fmt)
{
- /* Backing file format doesn't make sense without a backing file */
- if (backing_fmt && !backing_file) {
- return -EINVAL;
- }
-
pstrcpy(bs->backing_file, sizeof(bs->backing_file), backing_file ?: "");
pstrcpy(bs->backing_format, sizeof(bs->backing_format), backing_fmt ?: "");