Module Name: src Committed By: thorpej Date: Mon Dec 23 15:48:51 UTC 2019
Modified Files: src/sys/dev/i2c: as3722.c Log Message: In as3722_poweroff and as3722_reboot(), check for errors from iic_acquire_bus() before proceeding with writing to the device. To generate a diff of this commit: cvs rdiff -u -r1.17 -r1.18 src/sys/dev/i2c/as3722.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
Modified files: Index: src/sys/dev/i2c/as3722.c diff -u src/sys/dev/i2c/as3722.c:1.17 src/sys/dev/i2c/as3722.c:1.18 --- src/sys/dev/i2c/as3722.c:1.17 Mon Dec 23 02:35:18 2019 +++ src/sys/dev/i2c/as3722.c Mon Dec 23 15:48:51 2019 @@ -1,4 +1,4 @@ -/* $NetBSD: as3722.c,v 1.17 2019/12/23 02:35:18 thorpej Exp $ */ +/* $NetBSD: as3722.c,v 1.18 2019/12/23 15:48:51 thorpej Exp $ */ /*- * Copyright (c) 2015 Jared D. McNeill <jmcne...@invisible.ca> @@ -29,7 +29,7 @@ #include "opt_fdt.h" #include <sys/cdefs.h> -__KERNEL_RCSID(0, "$NetBSD: as3722.c,v 1.17 2019/12/23 02:35:18 thorpej Exp $"); +__KERNEL_RCSID(0, "$NetBSD: as3722.c,v 1.18 2019/12/23 15:48:51 thorpej Exp $"); #include <sys/param.h> #include <sys/systm.h> @@ -852,10 +852,16 @@ as3722_poweroff(device_t dev) const int flags = I2C_F_POLL; - iic_acquire_bus(sc->sc_i2c, flags); - error = as3722_write(sc, AS3722_RESET_CTRL_REG, - AS3722_RESET_CTRL_POWER_OFF, flags); - iic_release_bus(sc->sc_i2c, flags); + error = iic_acquire_bus(sc->sc_i2c, flags); + if (error == 0) { + error = as3722_write(sc, AS3722_RESET_CTRL_REG, + AS3722_RESET_CTRL_POWER_OFF, flags); + iic_release_bus(sc->sc_i2c, flags); + } + if (error) { + device_printf(dev, "WARNING: unable to power off, error %d\n", + error); + } return error; } @@ -868,10 +874,16 @@ as3722_reboot(device_t dev) const int flags = I2C_F_POLL; - iic_acquire_bus(sc->sc_i2c, flags); - error = as3722_write(sc, AS3722_RESET_CTRL_REG, - AS3722_RESET_CTRL_FORCE_RESET, flags); - iic_release_bus(sc->sc_i2c, flags); + error = iic_acquire_bus(sc->sc_i2c, flags); + if (error == 0) { + error = as3722_write(sc, AS3722_RESET_CTRL_REG, + AS3722_RESET_CTRL_FORCE_RESET, flags); + iic_release_bus(sc->sc_i2c, flags); + } + if (error) { + device_printf(dev, "WARNING: unable to reboot, error %d\n", + error); + } return error; }