powerpc/44x/fsp2: add missing of_node_put

Early exits from for_each_compatible_node() should decrement the
node reference counter.  Reported by Coccinelle:

./arch/powerpc/platforms/44x/fsp2.c:206:1-25: WARNING: Function
"for_each_compatible_node" should have of_node_put() before return
around line 218.

Fixes: 7813043e1bbc ("powerpc/44x/fsp2: Add irq error handlers")
Signed-off-by: Bixuan Cui <cuibixuan@linux.alibaba.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1635406102-88719-1-git-send-email-cuibixuan@linux.alibaba.com

diff --git a/arch/powerpc/platforms/44x/fsp2.c b/arch/powerpc/platforms/44x/fsp2.c
index b299e43f5ef944684f0217b5da1e9bbb68f6bd7f..823397c802defe52e7d2fed90c8d587d19cb3d8f 100644 (file)
--- a/arch/powerpc/platforms/44x/fsp2.c
+++ b/arch/powerpc/platforms/44x/fsp2.c
@@ -208,6 +208,7 @@ static void node_irq_request(const char *compat, irq_handler_t errirq_handler)
                if (irq == NO_IRQ) {
                        pr_err("device tree node %pOFn is missing a interrupt",
                              np);
+                       of_node_put(np);
                        return;
                }
 
@@ -215,6 +216,7 @@ static void node_irq_request(const char *compat, irq_handler_t errirq_handler)
                if (rc) {
                        pr_err("fsp_of_probe: request_irq failed: np=%pOF rc=%d",
                              np, rc);
+                       of_node_put(np);
                        return;
                }
        }