diff options
Diffstat (limited to 'block.c')
| -rw-r--r-- | block.c | 13 |
1 files changed, 10 insertions, 3 deletions
@@ -640,7 +640,7 @@ static int refresh_total_sectors(BlockDriverState *bs, int64_t hint) if (length < 0) { return length; } - hint = length >> BDRV_SECTOR_BITS; + hint = DIV_ROUND_UP(length, BDRV_SECTOR_SIZE); } bs->total_sectors = hint; @@ -1009,7 +1009,9 @@ int bdrv_open_backing_file(BlockDriverState *bs, QDict *options, Error **errp) bdrv_unref(bs->backing_hd); bs->backing_hd = NULL; bs->open_flags |= BDRV_O_NO_BACKING; - error_propagate(errp, local_err); + error_setg(errp, "Could not open backing file: %s", + error_get_pretty(local_err)); + error_free(local_err); return ret; } pstrcpy(bs->backing_file, sizeof(bs->backing_file), @@ -1084,8 +1086,8 @@ int bdrv_open(BlockDriverState *bs, const char *filename, QDict *options, snprintf(backing_filename, sizeof(backing_filename), "%s", filename); } else if (!realpath(filename, backing_filename)) { - error_setg_errno(errp, errno, "Could not resolve path '%s'", filename); ret = -errno; + error_setg_errno(errp, errno, "Could not resolve path '%s'", filename); goto fail; } @@ -1135,6 +1137,11 @@ int bdrv_open(BlockDriverState *bs, const char *filename, QDict *options, if (drvname) { drv = bdrv_find_format(drvname); qdict_del(options, "driver"); + if (!drv) { + error_setg(errp, "Invalid driver: '%s'", drvname); + ret = -EINVAL; + goto unlink_and_fail; + } } if (!drv) { |