X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fblock%2Fpktcdvd.c;h=bc56770bcc90889338810134bba163530e9f72d1;hb=03d661d3d7dd2c20330d775c13157419049f1617;hp=b9a6b7ad64f383c4056a3d9ff9d7b35dc56209e2;hpb=ad542ef5b2296fa7a8518e6be67c4588b750d316;p=linux-2.6

diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index b9a6b7ad64..bc56770bcc 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -2021,7 +2021,13 @@ static int pkt_open(struct inode *inode, struct file *file)
 	BUG_ON(pd->refcnt < 0);
 
 	pd->refcnt++;
-	if (pd->refcnt == 1) {
+	if (pd->refcnt > 1) {
+		if ((file->f_mode & FMODE_WRITE) &&
+		    !test_bit(PACKET_WRITABLE, &pd->flags)) {
+			ret = -EBUSY;
+			goto out_dec;
+		}
+	} else {
 		if (pkt_open_dev(pd, file->f_mode & FMODE_WRITE)) {
 			ret = -EIO;
 			goto out_dec;