Commit 58d383a6 authored by Segher Boessenkool's avatar Segher Boessenkool Committed by Linus Torvalds
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[PATCH] powerpc: make OF interrupt tree parsing more strict 



This patch fixes a bit of boundchecking in the new Open Firmware interrupt
tree parsing code.  It's important that it fails when things aren't correct in
order to trigger fallback mecanisms that are necessary to make some machines
work properly.

Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent f620753b

arch/powerpc/kernel/prom_parse.c

+1 −1
Original line number Diff line number Diff line
@@ -881,7 +881,7 @@ int of_irq_map_one(struct device_node *device, int index, struct of_irq *out_irq 
	intsize = *tmp;



	/* Check index */

	if (index * intsize >= intlen)

	if ((index + 1) * intsize > intlen)

		return -EINVAL;



	/* Get new specifier and map it */