[PATCH 10/11] serial: pic32: free up irq names correctly

[Jiri Slaby]

struct pic32_sport contains built-up names for irqs. These are freed
only in error path of pic32_uart_startup(). And even there, the freeing
happens before free_irq().

So fix this by:
* moving frees after free_irq(), and
* add frees to pic32_uart_shutdown() -- the opposite of
  pic32_uart_startup().

Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
---
 drivers/tty/serial/pic32_uart.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/tty/serial/pic32_uart.c b/drivers/tty/serial/pic32_uart.c
index 990603fe8a8d..c5584628f8c4 100644
--- a/drivers/tty/serial/pic32_uart.c
+++ b/drivers/tty/serial/pic32_uart.c
@@ -569,14 +569,14 @@ static int pic32_uart_startup(struct uart_port *port)
 	return 0;
 
 out_t:
-	kfree(sport->irq_tx_name);
 	free_irq(sport->irq_tx, port);
+	kfree(sport->irq_tx_name);
 out_r:
-	kfree(sport->irq_rx_name);
 	free_irq(sport->irq_rx, port);
+	kfree(sport->irq_rx_name);
 out_f:
-	kfree(sport->irq_fault_name);
 	free_irq(sport->irq_fault, port);
+	kfree(sport->irq_fault_name);
 out_done:
 	return ret;
 }
@@ -595,8 +595,11 @@ static void pic32_uart_shutdown(struct uart_port *port)
 
 	/* free all 3 interrupts for this UART */
 	free_irq(sport->irq_fault, port);
+	kfree(sport->irq_fault_name);
 	free_irq(sport->irq_tx, port);
+	kfree(sport->irq_tx_name);
 	free_irq(sport->irq_rx, port);
+	kfree(sport->irq_rx_name);
 }
 
 /* serial core request to change current uart setting */
-- 
2.36.0