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block: Avoid bdrv_get_geometry() where errors should be detected

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bdrv_get_geometry() hides errors.  Use bdrv_nb_sectors() or
bdrv_getlength() instead where that's obviously inappropriate.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Benoit Canet <benoit@irqsave.net>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Markus Armbruster 2014-06-26 13:23:25 +02:00 • committed by Kevin Wolf
parent d739f1c410
commit 52bf1e722d
3 changed files with 68 additions and 21 deletions
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11
block.c
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@ -5595,7 +5595,7 @@ void bdrv_img_create(const char *filename, const char *fmt,
if (size == -1) {
if (backing_file) {
BlockDriverState *bs;
uint64_t size;
int64_t size;
int back_flags;
/* backing files always opened read-only */
@ -5613,8 +5613,13 @@ void bdrv_img_create(const char *filename, const char *fmt,
local_err = NULL;
goto out;
}
bdrv_get_geometry(bs, &size);
size *= 512;
size = bdrv_getlength(bs);
if (size < 0) {
error_setg_errno(errp, -size, "Could not get size of '%s'",
backing_file);
bdrv_unref(bs);
goto out;
}
qemu_opt_set_number(opts, BLOCK_OPT_SIZE, size);