[PATCH] pktcdvd.c: Fix wrong return code when alloc_disk() fails.

[Jiecheng Wu]

Function pkt_setup_dev() defined in drivers/block/pktcdvd.c calls alloc_disk(). 
However, it forgets to set the error return code when alloc_disk() fails. 
Instead, when alloc_disk() fails, it simply jumps to label 'out_mem' leaving 
the variable ret unchanged.
---
 drivers/block/pktcdvd.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index b3f83cd..f63fa1f 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -2716,8 +2716,10 @@ static int pkt_setup_dev(dev_t dev, dev_t* pkt_dev)
        pd->write_congestion_off = write_congestion_off;
 
        disk = alloc_disk(1);
-       if (!disk)
+       if (!disk) {
+               ret = -ENOMEM;
                goto out_mem;
+       }
        pd->disk = disk;
        disk->major = pktdev_major;
        disk->first_minor = idx;
-- 
2.6.4