[PATCH AUTOSEL 5.5 041/542] media: ov5640: Fix check for PLL1 exceeding max allowed rate

[Sasha Levin]

From: Adam Ford <aford173@xxxxxxxxx>

[ Upstream commit 2e3df204f9af42a47823ee955c08950373417420 ]

The variable _rate is by ov5640_compute_sys_clk() which returns
zero if the PLL exceeds 1GHz.  Unfortunately, the check to see
if the max PLL1 output is checking 'rate' and not '_rate' and
'rate' does not ever appear to be 0.

This patch changes the check against the returned value of
'_rate' to determine if the PLL1 output exceeds 1GHz.

Fixes: aa2882481cad ("media: ov5640: Adjust the clock based on the expected rate")
Signed-off-by: Adam Ford <aford173@xxxxxxxxx>
Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/media/i2c/ov5640.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c
index 5e495c833d329..bb968e764f318 100644
--- a/drivers/media/i2c/ov5640.c
+++ b/drivers/media/i2c/ov5640.c
@@ -874,7 +874,7 @@ static unsigned long ov5640_calc_sys_clk(struct ov5640_dev *sensor,
 			 * We have reached the maximum allowed PLL1 output,
 			 * increase sysdiv.
 			 */
-			if (!rate)
+			if (!_rate)
 				break;
 
 			/*
-- 
2.20.1