[PATCH] pktcdvd: Allow non-writable media to be mounted
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>
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 7399976..edf6bf2 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -1895,7 +1895,7 @@
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 @@
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