powerpc/kexec_file: Add of_node_put() before goto

Fix following coccicheck warning:
./arch/powerpc/kexec/file_load_64.c:698:1-22: WARNING: Function
for_each_node_by_type should have of_node_put() before goto

Early exits from for_each_node_by_type should decrement the
node reference counter.

Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Acked-by: Hari Bathini <hbathini@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211018015418.10182-1-wanjiabing@vivo.com

diff --git a/arch/powerpc/kexec/file_load_64.c b/arch/powerpc/kexec/file_load_64.c
index 5056e175ca2c4f57f9e9fb13017fd48bd4d4ce55..b4981b651d9aa4a3f01dd5dc3bc6d369dce414d8 100644 (file)
--- a/arch/powerpc/kexec/file_load_64.c
+++ b/arch/powerpc/kexec/file_load_64.c
@@ -700,6 +700,7 @@ static int update_usable_mem_fdt(void *fdt, struct crash_mem *usable_mem)
                if (ret) {
                        pr_err("Failed to set linux,usable-memory property for %s node",
                               dn->full_name);
+                       of_node_put(dn);
                        goto out;
                }
        }