firewire: Survive more than 256 bus resets

The "color" is used during the topology building after a bus reset,
hovever in "struct fw_node"s it is stored in a u8, but in struct fw_card
it is stored in an int.  When the value wraps in one struct, but not
the other, disaster strikes.

Signed-off-by: Jay Fenlason <fenlason@redhat.com>
Fixes http://bugzilla.kernel.org/show_bug.cgi?id=10922.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

diff --git a/drivers/firewire/fw-transaction.h b/drivers/firewire/fw-transaction.h
index 027f58c..aed7dbb 100644 (file)
--- a/drivers/firewire/fw-transaction.h
+++ b/drivers/firewire/fw-transaction.h
@@ -248,7 +248,7 @@ struct fw_card {
        struct fw_node *local_node;
        struct fw_node *root_node;
        struct fw_node *irm_node;
-       int color;
+       u8 color; /* must be u8 to match the definition in struct fw_node */
        int gap_count;
        bool beta_repeaters_present;