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authorSudip Mukherjee <sudipm.mukherjee@gmail.com>2015-01-27 18:08:22 +0530
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-04-19 10:10:47 +0200
commitef6b5eaddd79fd6515c4eaf7506839bd9c60921c (patch)
tree674fc21e2a4fe6058a6eaf845a436fee78435b87 /drivers
parenta0688f524c6dcd43e5dff5f57f46e962e4c44548 (diff)
nbd: fix possible memory leak
commit ff6b8090e26ef7649ef0cc6b42389141ef48b0cf upstream. we have already allocated memory for nbd_dev, but we were not releasing that memory and just returning the error value. Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Acked-by: Paul Clements <Paul.Clements@SteelEye.com> Signed-off-by: Markus Pargmann <mpa@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/block/nbd.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index cf1576d54363..a5c987ae665d 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -815,10 +815,6 @@ static int __init nbd_init(void)
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);
@@ -840,6 +836,10 @@ static int __init nbd_init(void)
if (nbds_max > 1UL << (MINORBITS - part_shift))
return -EINVAL;
+ nbd_dev = kcalloc(nbds_max, sizeof(*nbd_dev), GFP_KERNEL);
+ if (!nbd_dev)
+ return -ENOMEM;
+
for (i = 0; i < nbds_max; i++) {
struct gendisk *disk = alloc_disk(1 << part_shift);
if (!disk)