diff options
| -rw-r--r-- | block.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/block.c b/block.c index ff2795b1e9..7ad3ddfea5 100644 --- a/block.c +++ b/block.c @@ -2778,6 +2778,7 @@ int bdrv_img_create(const char *filename, const char *fmt, QEMUOptionParameter *backing_fmt, *backing_file; BlockDriverState *bs = NULL; BlockDriver *drv, *proto_drv; + BlockDriver *backing_drv = NULL; int ret = 0; /* Find driver and parse its options */ @@ -2846,7 +2847,8 @@ int bdrv_img_create(const char *filename, const char *fmt, backing_fmt = get_option_parameter(param, BLOCK_OPT_BACKING_FMT); if (backing_fmt && backing_fmt->value.s) { - if (!bdrv_find_format(backing_fmt->value.s)) { + backing_drv = bdrv_find_format(backing_fmt->value.s); + if (!backing_drv) { error_report("Unknown backing file format '%s'", backing_fmt->value.s); ret = -EINVAL; @@ -2863,9 +2865,9 @@ int bdrv_img_create(const char *filename, const char *fmt, bs = bdrv_new(""); - ret = bdrv_open(bs, backing_file->value.s, flags, drv); + ret = bdrv_open(bs, backing_file->value.s, flags, backing_drv); if (ret < 0) { - error_report("Could not open '%s'", filename); + error_report("Could not open '%s'", backing_file->value.s); goto out; } bdrv_get_geometry(bs, &size); |