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Simplify sysctl handling.

This commit is contained in:
rkujawa 2013-10-15 10:27:55 +00:00
parent 3915797645
commit f89444f722
1 changed files with 14 additions and 15 deletions
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29
sys/dev/i2c/mcp980x.c
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@ -1,4 +1,4 @@
/* $NetBSD: mcp980x.c,v 1.2 2013/10/15 10:18:49 rkujawa Exp $ */
/* $NetBSD: mcp980x.c,v 1.3 2013/10/15 10:27:55 rkujawa Exp $ */
/*-
* Copyright (c) 2013 The NetBSD Foundation, Inc.
@ -36,7 +36,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: mcp980x.c,v 1.2 2013/10/15 10:18:49 rkujawa Exp $");
__KERNEL_RCSID(0, "$NetBSD: mcp980x.c,v 1.3 2013/10/15 10:27:55 rkujawa Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -308,25 +308,24 @@ sysctl_mcp980x_res(SYSCTLFN_ARGS)
{
struct sysctlnode node = *rnode;
struct mcp980x_softc *sc = node.sysctl_data;
int newres;
int newres, err;
node.sysctl_data = &sc->sc_res;
if ((err = (sysctl_lookup(SYSCTLFN_CALL(&node)))) != 0)
return err;
if (newp) {
node.sysctl_data = &sc->sc_res;
if (sysctl_lookup(SYSCTLFN_CALL(&node)) == 0) {
newres = *(int *)node.sysctl_data;
if (newres > MCP980X_CONFIG_ADC_RES_12BIT)
return EINVAL;
sc->sc_res = (uint8_t) newres;
mcp980x_resolution_set(sc, sc->sc_res);
return 0;
}
newres = *(int *)node.sysctl_data;
if (newres > MCP980X_CONFIG_ADC_RES_12BIT)
return EINVAL;
sc->sc_res = (uint8_t) newres;
mcp980x_resolution_set(sc, sc->sc_res);
return 0;
} else {
sc->sc_res = mcp980x_resolution_get(sc);
node.sysctl_data = &sc->sc_res;
node.sysctl_size = 4;
return (sysctl_lookup(SYSCTLFN_CALL(&node)));
}
return EINVAL;
return err;
}