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block: ide: Don't bother to create BLK device if no CDROM inserted

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When there is no CDROM inserted, the block size is zero hence there
is no need to create a BLK device for it.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Bin Meng
2017-09-10 05:12:52 -07:00
committed by Tom Rini
parent 68e6f221ed
commit 1f4adab873
1 changed files with 7 additions and 0 deletions
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7
drivers/block/ide.c
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@ -1202,6 +1202,13 @@ static int ide_probe(struct udevice *udev)
blksz = ide_dev_desc[i].blksz; blksz = ide_dev_desc[i].blksz;
size = blksz * ide_dev_desc[i].lba; size = blksz * ide_dev_desc[i].lba;
/*
* With CDROM, if there is no CD inserted, blksz will
* be zero, don't bother to create IDE block device.
*/
if (!blksz)
continue;
ret = blk_create_devicef(udev, "ide_blk", name, ret = blk_create_devicef(udev, "ide_blk", name,
IF_TYPE_IDE, i, IF_TYPE_IDE, i,
blksz, size, &blk_dev); blksz, size, &blk_dev);