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cdrom_id: Fix media state for unreadable DVDs

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If the disc is unreadable and reading of the first 32 blocks fails set the
cd_media status to 0 (not present). This will prevent udev from executing blkid
next that tries to determine fs on the disc and which in this case may seem to
hang forever locking the drive.

Signed-off-by: Martin Pitt <martin.pitt@ubuntu.com>
This commit is contained in:
Jan Drzewiecki
2010-10-26 12:10:57 -04:00
committed by Martin Pitt
parent 81956ed1dc
commit d43e5e5b5a
1 changed files with 1 additions and 0 deletions
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extras/cdrom_id/cdrom_id.c
+1
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@@ -696,6 +696,7 @@ static int cd_media_info(struct udev *udev, int fd)
scsi_cmd_set(udev, &sc, 9, 0);
err = scsi_cmd_run(udev, &sc, fd, buffer, sizeof(buffer));
if ((err != 0)) {
cd_media = 0;
info_scsi_cmd_err(udev, "READ FIRST 32 BLOCKS", err);
return -1;
}