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authorDan Carpenter <dan.carpenter@oracle.com>2012-11-13 10:44:54 +0300
committerTakashi Iwai <tiwai@suse.de>2012-11-13 08:51:47 +0100
commitd2153a1595ee8235ecf9f9e2d1ac18eee373cbb5 (patch)
treed2a3f03ecbfc6b06252079be717ac2f7bfe317b1 /sound
parent6214b54cbf0778804de1297444c7661e70bc4d74 (diff)
ALSA: es1968: precedence bug in snd_es1968_tea575x_get_pins()
I don't think this works as intended. '|' higher precedence than ?: so the bitwize OR "0 | (val & STR_MOST)" is a no-op. I have re-written it to be more clear. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/pci/es1968.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/sound/pci/es1968.c b/sound/pci/es1968.c
index 50169bcfd903..7266020c16cb 100644
--- a/sound/pci/es1968.c
+++ b/sound/pci/es1968.c
@@ -2581,9 +2581,14 @@ static u8 snd_es1968_tea575x_get_pins(struct snd_tea575x *tea)
struct es1968 *chip = tea->private_data;
unsigned long io = chip->io_port + GPIO_DATA;
u16 val = inw(io);
-
- return (val & STR_DATA) ? TEA575X_DATA : 0 |
- (val & STR_MOST) ? TEA575X_MOST : 0;
+ u8 ret;
+
+ ret = 0;
+ if (val & STR_DATA)
+ ret |= TEA575X_DATA;
+ if (val & STR_MOST)
+ ret |= TEA575X_MOST;
+ return ret;
}
static void snd_es1968_tea575x_set_direction(struct snd_tea575x *tea, bool output)