korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-17 01:04:19 +08:00
Code Issues Packages Projects Releases Wiki Activity

powerpc/xive: Fix refcount leak in xive_spapr_init

Browse Source 
[ Upstream commit 1d1fb9618b ]

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: eac1e731b5 ("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>
This commit is contained in:
Miaoqian Lin 2022-05-12 13:05:33 +04:00 committed by Greg Kroah-Hartman
parent fd7a3548af
commit 65f11ccdd7
1 changed files with 5 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
arch/powerpc/sysdev/xive/spapr.c
View File

@ -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;
}