[alsa-devel] [patch] ALSA: fm801: precedence bug in snd_fm801_tea575x_get_pins()

Dan Carpenter dan.carpenter at oracle.com
Wed Nov 14 09:23:54 CET 2012


There is a precedence bug because | has higher precedence than ?:.  This
code was cut and pasted and I fixed a similar bug a few days ago.

Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>

diff --git a/sound/pci/fm801.c b/sound/pci/fm801.c
index cc2e91d..c5806f8 100644
--- a/sound/pci/fm801.c
+++ b/sound/pci/fm801.c
@@ -767,9 +767,14 @@ static u8 snd_fm801_tea575x_get_pins(struct snd_tea575x *tea)
 	struct fm801 *chip = tea->private_data;
 	unsigned short reg = inw(FM801_REG(chip, GPIO_CTRL));
 	struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
-
-	return  (reg & FM801_GPIO_GP(gpio.data)) ? TEA575X_DATA : 0 |
-		(reg & FM801_GPIO_GP(gpio.most)) ? TEA575X_MOST : 0;
+	u8 ret;
+
+	ret = 0;
+	if (reg & FM801_GPIO_GP(gpio.data))
+		ret |= TEA575X_DATA;
+	if (reg & FM801_GPIO_GP(gpio.most))
+		ret |= TEA575X_MOST;
+	return ret;
 }
 
 static void snd_fm801_tea575x_set_direction(struct snd_tea575x *tea, bool output)


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