[PATCH] Removes warning related to use of uninitialized variable i

[Sukanto Ghosh <sukanto.cse.iitb@xxxxxxxxx>]

Diff against 2.6.37


Signed-off-by: Sukanto Ghosh <sukanto.cse.iitb@xxxxxxxxx>

----
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index b25e6e4..add97dd 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -1724,7 +1724,7 @@ static int serial_link_irq_chain(struct
uart_8250_port *up)

 static void serial_unlink_irq_chain(struct uart_8250_port *up)
 {
-       struct irq_info *i;
+       struct irq_info *i = NULL;
        struct hlist_node *n;
        struct hlist_head *h;

@@ -1739,7 +1739,7 @@ static void serial_unlink_irq_chain(struct
uart_8250_port *up)
        }

        BUG_ON(n == NULL);
-       BUG_ON(i->head == NULL);
+       BUG_ON(i == NULL || i->head == NULL);

        if (list_empty(i->head))
                free_irq(up->port.irq, i);
--
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