powerpc/irq: Always free duplicate IRQ_LEGACY hosts

Since kmem caches are allocated before init_IRQ as noted in 3af259d155
(powerpc: Radix trees are available before init_IRQ), we now call
kmalloc in all cases and can can always call kfree if we are asked
to allocate a duplicate or conflicting IRQ_HOST_MAP_LEGACY host.

Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index f2fd653..0df2554 100644 (file)
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -557,15 +557,8 @@ struct irq_host *irq_alloc_host(struct device_node *of_node,
        if (revmap_type == IRQ_HOST_MAP_LEGACY) {
                if (irq_map[0].host != NULL) {
                        raw_spin_unlock_irqrestore(&irq_big_lock, flags);
-                       /* If we are early boot, we can't free the structure,
-                        * too bad...
-                        * this will be fixed once slab is made available early
-                        * instead of the current cruft
-                        */
-                       if (mem_init_done) {
-                               of_node_put(host->of_node);
-                               kfree(host);
-                       }
+                       of_node_put(host->of_node);
+                       kfree(host);
                        return NULL;
                }
                irq_map[0].host = host;