Commit 3d1b5e20 authored May 24, 2011 by Milton Miller Committed by Benjamin Herrenschmidt May 26, 2011

powerpc/irq: Always free duplicate IRQ_LEGACY hosts



Since kmem caches are allocated before init_IRQ as noted in 3af259d1
(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>

parent 8142f032

arch/powerpc/kernel/irq.c

+2 −9

Original line number	Diff line number	Diff line
		@@ -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);
		}
		return NULL;
		}
		irq_map[0].host = host;