From: Michael Buesch <mb@bu3sch.de>
Date: Wed, 18 Feb 2009 22:48:41 +0000 (-0800)
Subject: spi-gpio: sanitize MISO bitvalue
X-Git-Tag: firefly_0821_release~15499
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=be50344e604f956891fc0013f1ba78823a758124;p=firefly-linux-kernel-4.4.55.git

spi-gpio: sanitize MISO bitvalue

gpio_get_value() returns 0 or nonzero, but getmiso() expects 0 or 1.
Sanitize the value to a 0/1 boolean.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/drivers/spi/spi_gpio.c b/drivers/spi/spi_gpio.c
index 49698cabc30d..f5ed9721aabb 100644
--- a/drivers/spi/spi_gpio.c
+++ b/drivers/spi/spi_gpio.c
@@ -114,7 +114,7 @@ static inline void setmosi(const struct spi_device *spi, int is_on)
 
 static inline int getmiso(const struct spi_device *spi)
 {
-	return gpio_get_value(SPI_MISO_GPIO);
+	return !!gpio_get_value(SPI_MISO_GPIO);
 }
 
 #undef pdata