From: Shawn Lin <shawn.lin@rock-chips.com>
Date: Thu, 10 Mar 2016 06:52:27 +0000 (+0800)
Subject: UPSTREAM: spi: rockchip: covert rsd_nsecs to u32 type
X-Git-Tag: firefly_0821_release~2438
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=5edbaec5862c45d7f74da2c117063e7359ad80a5;p=firefly-linux-kernel-4.4.55.git

UPSTREAM: spi: rockchip: covert rsd_nsecs to u32 type

rsd_nsecs is defined as u8 memeber of struct rockchip_spi,
but using of_property_read_u32. That means we take risk of
truncation by type conversion if we pass on big value from
dt.

Change-Id: I4d3e29b64749ac8a86782413d0f41691b9ff4e84
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
(cherry picked from git.kernel.org next/linux-next.git master
 commit 108b5c8bba6be101100596bf37a165214e1c8458)
---

diff --git a/drivers/spi/spi-rockchip.c b/drivers/spi/spi-rockchip.c
index 7a4a131cdbd8..26e2688c104e 100644
--- a/drivers/spi/spi-rockchip.c
+++ b/drivers/spi/spi-rockchip.c
@@ -173,7 +173,7 @@ struct rockchip_spi {
 	u8 tmode;
 	u8 bpw;
 	u8 n_bytes;
-	u8 rsd_nsecs;
+	u32 rsd_nsecs;
 	unsigned len;
 	u32 speed;