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Subject[PATCH 2/4] pktcdvd: Allow non-writable media to be mounted
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Date
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>
---

drivers/block/pktcdvd.c | 7 +++----
1 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 7879df0..d747f28 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -1896,7 +1896,7 @@ static int pkt_open_write(struct pktcdvd

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))) {
@@ -2054,10 +2054,9 @@ static int pkt_open(struct inode *inode,
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
--
Peter Osterlund - petero2@telia.com
http://web.telia.com/~u89404340
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