diff options
| author | Sven Wegener | 2008-08-20 23:09:07 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2008-08-21 00:40:30 +0200 |
| commit | f3944d61ddc65722539ffd7b6f5b7c7217c136cc (patch) | |
| tree | dd48fb10e38df546535b1b3aa576aec79937e4ac /drivers/block | |
| parent | mm: mminit_loglevel cannot be __meminitdata anymore (diff) | |
| download | kernel-qcow2-linux-f3944d61ddc65722539ffd7b6f5b7c7217c136cc.tar.gz kernel-qcow2-linux-f3944d61ddc65722539ffd7b6f5b7c7217c136cc.tar.xz kernel-qcow2-linux-f3944d61ddc65722539ffd7b6f5b7c7217c136cc.zip | |
nbd: fix memory leak of nbd_dev array
We leak the memory allocated for the nbd_dev array at multiple places.
Fix them by either adding a kfree() or by rearranging code to return
before we allocate the memory.
Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
Cc: Paul Clements <paul.clements@steeleye.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/nbd.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index ad98dda6037d..1778e4a2c672 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -707,15 +707,15 @@ static int __init nbd_init(void) BUILD_BUG_ON(sizeof(struct nbd_request) != 28); - nbd_dev = kcalloc(nbds_max, sizeof(*nbd_dev), GFP_KERNEL); - if (!nbd_dev) - return -ENOMEM; - if (max_part < 0) { printk(KERN_CRIT "nbd: max_part must be >= 0\n"); return -EINVAL; } + nbd_dev = kcalloc(nbds_max, sizeof(*nbd_dev), GFP_KERNEL); + if (!nbd_dev) + return -ENOMEM; + part_shift = 0; if (max_part > 0) part_shift = fls(max_part); @@ -779,6 +779,7 @@ out: blk_cleanup_queue(nbd_dev[i].disk->queue); put_disk(nbd_dev[i].disk); } + kfree(nbd_dev); return err; } @@ -795,6 +796,7 @@ static void __exit nbd_cleanup(void) } } unregister_blkdev(NBD_MAJOR, "nbd"); + kfree(nbd_dev); printk(KERN_INFO "nbd: unregistered device at major %d\n", NBD_MAJOR); } |