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[PATCH] pktcdvd: Allow non-writable media to be mounted

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If opening for write fails, the open method should return -EROFS.  This makes
"mount" try again with a read-only mount, instead of just giving up.

Signed-off-by: Peter Osterlund <petero2@telia.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Peter Osterlund 2006-02-14 13:52:55 -08:00 committed by Linus Torvalds
parent 61a3493798
commit 01fd9fda2c
1 changed files with 3 additions and 4 deletions
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7
drivers/block/pktcdvd.c
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@ -1895,7 +1895,7 @@ static int pkt_open_write(struct pktcdvd_device *pd)
if ((ret = pkt_probe_settings(pd))) {
VPRINTK("pktcdvd: %s failed probe\n", pd->name);
return -EIO;
return -EROFS;
}
if ((ret = pkt_set_write_settings(pd))) {
@ -2053,10 +2053,9 @@ static int pkt_open(struct inode *inode, struct file *file)
goto out_dec;
}
} else {
if (pkt_open_dev(pd, file->f_mode & FMODE_WRITE)) {
ret = -EIO;
ret = pkt_open_dev(pd, file->f_mode & FMODE_WRITE);
if (ret)
goto out_dec;
}
/*
* needed here as well, since ext2 (among others) may change
* the blocksize at mount time