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Date: Tue, 26 Jan 2016 23:37:25 +0000 From: Colin King <colin.king@...onical.com> To: James Hogan <james.hogan@...tec.com>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Jiri Slaby <jslaby@...e.com>, linux-metag@...r.kernel.org Cc: linux-kernel@...r.kernel.org Subject: [PATCH] tty/metag_da: initialize number_written to zero From: Colin Ian King <colin.king@...onical.com> 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@...onical.com> --- 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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