ieee1394: fix broken signed char assumption.

"ack_code" is assigned (and tested against) negative numbers, but was
declared as "char".  Which only works if "char" is signed - which it
necessarily isn't.

So make that signedness assumption specific.

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/ieee1394/ieee1394_core.h b/drivers/ieee1394/ieee1394_core.h
index 73bd8efd2b6..0b31429d0a6 100644
--- a/drivers/ieee1394/ieee1394_core.h
+++ b/drivers/ieee1394/ieee1394_core.h
@@ -38,8 +38,8 @@ struct hpsb_packet {
 
         /* These are core internal. */
         signed char tlabel;
-        char ack_code;
-        char tcode;
+        signed char ack_code;
+        unsigned char tcode;
 
         unsigned expect_response:1;
         unsigned no_waiter:1;