Commit 8b257783 authored by Gavin Shan's avatar Gavin Shan Committed by Michael Ellerman

powerpc/kernel: Fix unbalanced refcount on RTAS device node

The RTAS device-tree node's refcount has been increased by one in
the function call of_find_node_by_name(), but it's missed to be
decreased by one in the error path. It leads to unbalanced refcount
on RTAS device-tree node.

This fixes above issue by decreasing RTAS device-tree node's refcount
in error path.
Signed-off-by: default avatarGavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent de6d2d1b
...@@ -1158,6 +1158,7 @@ void __init rtas_initialize(void) ...@@ -1158,6 +1158,7 @@ void __init rtas_initialize(void)
no_base = of_property_read_u32(rtas.dev, "linux,rtas-base", &base); no_base = of_property_read_u32(rtas.dev, "linux,rtas-base", &base);
no_size = of_property_read_u32(rtas.dev, "rtas-size", &size); no_size = of_property_read_u32(rtas.dev, "rtas-size", &size);
if (no_base || no_size) { if (no_base || no_size) {
of_node_put(rtas.dev);
rtas.dev = NULL; rtas.dev = NULL;
return; return;
} }
......
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