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| author | Tyrel Datwyler <tyreld@linux.vnet.ibm.com> | 2017-09-20 17:02:52 -0400 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-09-21 19:33:16 +1000 |
| commit | b537ca6fede69a281dc524983e5e633d79a10a08 (patch) | |
| tree | 1d66389a711e6f4cbf97e022f9cc555c8a8bf7de /arch | |
| parent | 087ff6a5ae3052bb2835e191094b793789cb8817 (diff) | |
| download | linux-b537ca6fede69a281dc524983e5e633d79a10a08.tar.bz2 | |
powerpc/pseries: Fix parent_dn reference leak in add_dt_node()
A reference to the parent device node is held by add_dt_node() for the
node to be added. If the call to dlpar_configure_connector() fails
add_dt_node() returns ENOENT and that reference is not freed.
Add a call to of_node_put(parent_dn) prior to bailing out after a
failed dlpar_configure_connector() call.
Fixes: 8d5ff320766f ("powerpc/pseries: Make dlpar_configure_connector parent node aware")
Cc: stable@vger.kernel.org # v3.12+
Signed-off-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/platforms/pseries/mobility.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/pseries/mobility.c b/arch/powerpc/platforms/pseries/mobility.c index 210ce632d63e..f7042ad492ba 100644 --- a/arch/powerpc/platforms/pseries/mobility.c +++ b/arch/powerpc/platforms/pseries/mobility.c @@ -226,8 +226,10 @@ static int add_dt_node(__be32 parent_phandle, __be32 drc_index) return -ENOENT; dn = dlpar_configure_connector(drc_index, parent_dn); - if (!dn) + if (!dn) { + of_node_put(parent_dn); return -ENOENT; + } rc = dlpar_attach_node(dn, parent_dn); if (rc) |