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block: Make BlockDriver method bdrv_eject() return void 

Callees always return 0, except for FreeBSD's cdrom_eject(), which
returns -ENOTSUP when the device is in a terminally wedged state.

The only caller is bdrv_eject(), and it maps -ENOTSUP to 0 since
commit 4be9762a.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Markus Armbruster 2011-07-20 18:23:42 +02:00 committed by Kevin Wolf
parent 7bf37feddc
commit 822e1cd17e
4 changed files with 12 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
block.c
View File

@ -2770,25 +2770,16 @@ int bdrv_media_changed(BlockDriverState *bs)
int bdrv_eject(BlockDriverState *bs, int eject_flag)
{
BlockDriver *drv = bs->drv;
int ret;
if (bs->locked) {
return -EBUSY;
}
if (!drv || !drv->bdrv_eject) {
ret = -ENOTSUP;
} else {
ret = drv->bdrv_eject(bs, eject_flag);
if (drv && drv->bdrv_eject) {
drv->bdrv_eject(bs, eject_flag);
}
if (ret == -ENOTSUP) {
ret = 0;
}
if (ret >= 0) {
bs->tray_open = eject_flag;
}
return ret;
bs->tray_open = eject_flag;
return 0;
}
int bdrv_is_locked(BlockDriverState *bs)

16
block/raw-posix.c
View File

@ -1254,7 +1254,7 @@ static int floppy_media_changed(BlockDriverState *bs)
return ret;
}
static int floppy_eject(BlockDriverState *bs, int eject_flag)
static void floppy_eject(BlockDriverState *bs, int eject_flag)
{
BDRVRawState *s = bs->opaque;
int fd;
@ -1269,8 +1269,6 @@ static int floppy_eject(BlockDriverState *bs, int eject_flag)
perror("FDEJECT");
close(fd);
}
return 0;
}
static BlockDriver bdrv_host_floppy = {
@ -1348,7 +1346,7 @@ static int cdrom_is_inserted(BlockDriverState *bs)
return 0;
}
static int cdrom_eject(BlockDriverState *bs, int eject_flag)
static void cdrom_eject(BlockDriverState *bs, int eject_flag)
{
BDRVRawState *s = bs->opaque;
@ -1359,8 +1357,6 @@ static int cdrom_eject(BlockDriverState *bs, int eject_flag)
if (ioctl(s->fd, CDROMCLOSETRAY, NULL) < 0)
perror("CDROMEJECT");
}
return 0;
}
static void cdrom_set_locked(BlockDriverState *bs, int locked)
@ -1462,12 +1458,12 @@ static int cdrom_is_inserted(BlockDriverState *bs)
return raw_getlength(bs) > 0;
}
static int cdrom_eject(BlockDriverState *bs, int eject_flag)
static void cdrom_eject(BlockDriverState *bs, int eject_flag)
{
BDRVRawState *s = bs->opaque;
if (s->fd < 0)
return -ENOTSUP;
return;
(void) ioctl(s->fd, CDIOCALLOW);
@ -1479,9 +1475,7 @@ static int cdrom_eject(BlockDriverState *bs, int eject_flag)
perror("CDIOCCLOSE");
}
if (cdrom_reopen(bs) < 0)
return -ENOTSUP;
return 0;
cdrom_reopen(bs);
}
static void cdrom_set_locked(BlockDriverState *bs, int locked)

4
block/raw.c
View File

@ -75,9 +75,9 @@ static int raw_is_inserted(BlockDriverState *bs)
return bdrv_is_inserted(bs->file);
}
static int raw_eject(BlockDriverState *bs, int eject_flag)
static void raw_eject(BlockDriverState *bs, int eject_flag)
{
return bdrv_eject(bs->file, eject_flag);
bdrv_eject(bs->file, eject_flag);
}
static void raw_set_locked(BlockDriverState *bs, int locked)

2
block_int.h
View File

@ -112,7 +112,7 @@ struct BlockDriver {
/* removable device specific */
int (*bdrv_is_inserted)(BlockDriverState *bs);
int (*bdrv_media_changed)(BlockDriverState *bs);
int (*bdrv_eject)(BlockDriverState *bs, int eject_flag);
void (*bdrv_eject)(BlockDriverState *bs, int eject_flag);
void (*bdrv_set_locked)(BlockDriverState *bs, int locked);
/* to control generic scsi devices */