[PATCH 1/2] serial: 8250: Initialize pointer to irq_info

[Michal Simek]

Initialize "i" irq_info pointer in serial_unlink_irq_chain.

Compilation warning:
  CC      drivers/serial/8250.o
drivers/serial/8250.c: In function 'serial8250_shutdown':
drivers/serial/8250.c:1701: warning: 'i' may be used uninitialized in this function

Signed-off-by: Michal Simek <monstr@xxxxxxxxx>
CC: Greg Kroah-Hartman <gregkh@xxxxxxx>
CC: Alan Cox <alan@xxxxxxxxxxxxxxx>
CC: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
CC: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
CC: Manuel Lauss <manuel.lauss@xxxxxxxxxxxxxx>
CC: linux-serial@xxxxxxxxxxxxxxx
CC: linux-kernel@xxxxxxxxxxxxxxx
---
 drivers/serial/8250.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index 24110f6..6c847d3 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -1698,7 +1698,7 @@ 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;
 
-- 
1.5.5.6

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