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| author | Miaoqian Lin <linmq006@gmail.com> | 2022-05-12 13:05:33 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-09 10:26:10 +0200 |
| commit | 6e806485d851986a2445267608f27cb4ba2ed774 (patch) | |
| tree | 87199058bfde21cfe8a9acbd5f1eebdf06070ba2 /arch | |
| parent | c5dc3ab2a24e5b62d68a108054ced962c39faae5 (diff) | |
powerpc/xive: Fix refcount leak in xive_spapr_init
[ Upstream commit 1d1fb9618bdd5a5fbf9a9eb75133da301d33721c ]
of_find_compatible_node() returns a node pointer with refcount
incremented, we should use of_node_put() on it when done.
Add missing of_node_put() to avoid refcount leak.
Fixes: eac1e731b59e ("powerpc/xive: guest exploitation of the XIVE interrupt controller")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220512090535.33397-1-linmq006@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/sysdev/xive/spapr.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/powerpc/sysdev/xive/spapr.c b/arch/powerpc/sysdev/xive/spapr.c index 29456c255f9f..503f544d28e2 100644 --- a/arch/powerpc/sysdev/xive/spapr.c +++ b/arch/powerpc/sysdev/xive/spapr.c @@ -830,12 +830,12 @@ bool __init xive_spapr_init(void) /* Resource 1 is the OS ring TIMA */ if (of_address_to_resource(np, 1, &r)) { pr_err("Failed to get thread mgmnt area resource\n"); - return false; + goto err_put; } tima = ioremap(r.start, resource_size(&r)); if (!tima) { pr_err("Failed to map thread mgmnt area\n"); - return false; + goto err_put; } if (!xive_get_max_prio(&max_prio)) @@ -871,6 +871,7 @@ bool __init xive_spapr_init(void) if (!xive_core_init(np, &xive_spapr_ops, tima, TM_QW1_OS, max_prio)) goto err_mem_free; + of_node_put(np); pr_info("Using %dkB queues\n", 1 << (xive_queue_shift - 10)); return true; @@ -878,6 +879,8 @@ err_mem_free: xive_irq_bitmap_remove_all(); err_unmap: iounmap(tima); +err_put: + of_node_put(np); return false; } |