Fix typo "usefull"

Prepares for applying ohw.diff from QEMU.

Signed-off-by: Andreas Färber <andreas.faerber@web.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/of.c b/src/of.c
index c2db8ec..d1fc300 100644
--- a/src/of.c
+++ b/src/of.c
@@ -2457,7 +2457,7 @@ void OF_finalize_pci_macio (void *dev, uint32_t base_address, uint32_t size,
         OF_node_put(OF_env, mpic);
     }
 #if 1
-    /* escc is usefull to get MacOS X debug messages */
+    /* escc is useful to get MacOS X debug messages */
     {
         OF_regprop_t regs[8];
         uint32_t irqs[6];