From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
number_written is not initialized, so it can be any value. In the
case where dport->xmit_cnt is zero, number_written is not set
and subsequent accesses to it will be reading a garbage value.
Fix this by initializing it to zero for the case when
dport->xmit_count is zero.
Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
drivers/tty/metag_da.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/metag_da.c b/drivers/tty/metag_da.c
index 9325262..3da89c1 100644
--- a/drivers/tty/metag_da.c
+++ b/drivers/tty/metag_da.c
@@ -230,7 +230,7 @@ static int put_channel_data(unsigned int chan)
{
struct dashtty_port *dport;
struct tty_struct *tty;
- int number_written;
+ int number_written = 0;
unsigned int count = 0;
dport = &dashtty_ports[chan];
--
2.7.0.rc3
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