From: Maxime Ripard <maxime.ripard@bootlin.com>
Date: Sun, 21 Oct 2018 18:34:45 +0200
Subject: drm/sun4i: hdmi: Fix unitialized variable
Git-commit: a25b77a1d79774981d9e8eefbb7d15c05cbd301c
Patch-mainline: v5.0-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

The is_double variable is used to store, and possibly returning to the
calling function, whether it needs to double the rate of the parent clock
or not.

In the case where it does, the variable is affected, but in the case where
it doesn't we return some uninitialized value. Fix this.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Giulio Benetti <giulio.benetti@micronovasrl.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181021163446.29135-1-maxime.ripard@bootlin.com

Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/sun4i/sun4i_hdmi_tmds_clk.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/sun4i/sun4i_hdmi_tmds_clk.c
+++ b/drivers/gpu/drm/sun4i/sun4i_hdmi_tmds_clk.c
@@ -35,7 +35,7 @@ static unsigned long sun4i_tmds_calc_div
 {
 	unsigned long best_rate = 0;
 	u8 best_m = 0, m;
-	bool is_double;
+	bool is_double = false;
 
 	for (m = div_offset ?: 1; m < (16 + div_offset); m++) {
 		u8 d;