From: Bin Meng Date: Sun, 3 Sep 2017 21:00:09 -0700 Subject: [U-Boot] [PATCH 3/4] block: ide: Don't bother to create BLK device if no CDROM inserted In-Reply-To: <1504497610-4775-1-git-send-email-bmeng.cn@gmail.com> References: <1504497610-4775-1-git-send-email-bmeng.cn@gmail.com> Message-ID: <1504497610-4775-3-git-send-email-bmeng.cn@gmail.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de 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 --- drivers/block/ide.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/block/ide.c b/drivers/block/ide.c index 58b295e..8125ff8 100644 --- a/drivers/block/ide.c +++ b/drivers/block/ide.c @@ -1197,6 +1197,13 @@ static int ide_probe(struct udevice *udev) blksz = ide_dev_desc[i].blksz; 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, IF_TYPE_IDE, i, blksz, size, &blk_dev); -- 2.9.2