In file included from ./include/linux/rwsem.h:16:0,
from ./include/linux/notifier.h:15,
from ./include/linux/clk.h:17,
from drivers/tty/serial/sh-sci.c:24:
drivers/tty/serial/sh-sci.c: In function ‘sci_submit_rx’:
./include/linux/spinlock.h:279:3: warning: ‘flags’ may be used uninitialized in this function [-Wmaybe-uninitialized]
_raw_spin_unlock_irqrestore(lock, flags); \
^
drivers/tty/serial/sh-sci.c:1338:16: note: ‘flags’ was declared here
unsigned long flags;
GCC version is gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.10) 5.4.0 20160609.
Let's fix it initializing the flags to 0.
Cc: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Cc: Simon Horman <horms+renesas@xxxxxxxxxxxx>
Cc: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Shaokun Zhang <zhangshaokun@xxxxxxxxxxxxx>
---
drivers/tty/serial/sh-sci.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 8df0fd824520..aa5dd9b417f5 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -1335,7 +1335,7 @@ static int sci_submit_rx(struct sci_port *s, bool port_lock_held)
{
struct dma_chan *chan = s->chan_rx;
struct uart_port *port = &s->port;
- unsigned long flags;
+ unsigned long flags = 0;
int i;
for (i = 0; i < 2; i++) {
--
2.7.4
