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pcf8591: remove write-only variables

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MFC after:	1 week
This commit is contained in:
Andriy Gapon 2021-12-13 13:10:12 +02:00
parent cca0d3bbd8
commit b416345d5b
1 changed files with 1 additions and 4 deletions
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5
sys/dev/iicbus/pcf8591.c
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@ -141,14 +141,12 @@ pcf8591_select_channel(device_t dev, int channel)
static int
pcf8591_channel_sysctl(SYSCTL_HANDLER_ARGS)
{
struct pcf8591_softc *sc;
device_t dev;
int error, channel, val;
uint8_t reading;
dev = arg1;
channel = arg2;
sc = device_get_softc(dev);
if (req->oldptr != NULL) {
error = pcf8591_select_channel(dev, channel);
@ -173,7 +171,6 @@ pcf8591_start(void *arg)
struct sysctl_oid_list *tree;
struct sysctl_oid *inputs_node;
struct sysctl_oid_list *inputs;
int error;
sc = arg;
dev = sc->sc_dev;
@ -188,7 +185,7 @@ pcf8591_start(void *arg)
sc->sc_cfg = 0;
sc->sc_output = 0;
sc->sc_ch_count = 4;
error = pcf8591_set_config(dev);
(void)pcf8591_set_config(dev);
ctx = device_get_sysctl_ctx(dev);
tree_node = device_get_sysctl_tree(dev);