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

[Peter Osterlund <petero2@telia.com>]

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