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add comment why NULL handlers are sufficient. 

requested and ok'd by jmcneill
This commit is contained in:
cegger 2008-05-25 22:03:23 +00:00
parent 5c6ac26f4d
commit 5db879ef65
1 changed files with 8 additions and 2 deletions
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10
sys/dev/pci/nfsmb.c
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@ -1,4 +1,4 @@
/* $NetBSD: nfsmb.c,v 1.13 2008/05/25 20:51:22 cegger Exp $ */ /* $NetBSD: nfsmb.c,v 1.14 2008/05/25 22:03:23 cegger Exp $ */
/* /*
* Copyright (c) 2007 KIYOHARA Takashi * Copyright (c) 2007 KIYOHARA Takashi
* All rights reserved. * All rights reserved.
@ -26,7 +26,7 @@
* *
*/ */
#include <sys/cdefs.h> #include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: nfsmb.c,v 1.13 2008/05/25 20:51:22 cegger Exp $"); __KERNEL_RCSID(0, "$NetBSD: nfsmb.c,v 1.14 2008/05/25 22:03:23 cegger Exp $");
#include <sys/param.h> #include <sys/param.h>
#include <sys/device.h> #include <sys/device.h>
@ -178,6 +178,9 @@ nfsmbc_attach(device_t parent, device_t self, void *aux)
nfsmbca.nfsmb_addr = NFORCE_SMBBASE(reg); nfsmbca.nfsmb_addr = NFORCE_SMBBASE(reg);
sc->sc_nfsmb[1] = config_found(sc->sc_dev, &nfsmbca, nfsmbc_print); sc->sc_nfsmb[1] = config_found(sc->sc_dev, &nfsmbca, nfsmbc_print);
/* This driver is similar to an ISA bridge that doesn't
* need any special handling. So registering NULL handlers
* are sufficent. */
if (!pmf_device_register(self, NULL, NULL)) if (!pmf_device_register(self, NULL, NULL))
aprint_error_dev(self, "couldn't establish power handler\n"); aprint_error_dev(self, "couldn't establish power handler\n");
} }
@ -247,6 +250,9 @@ nfsmb_attach(device_t parent, device_t self, void *aux)
iba.iba_tag = &sc->sc_i2c; iba.iba_tag = &sc->sc_i2c;
(void) config_found_ia(sc->sc_dev, "i2cbus", &iba, iicbus_print); (void) config_found_ia(sc->sc_dev, "i2cbus", &iba, iicbus_print);
/* This driver is similar to an ISA bridge that doesn't
* need any special handling. So registering NULL handlers
* are sufficent. */
if (!pmf_device_register(self, NULL, NULL)) if (!pmf_device_register(self, NULL, NULL))
aprint_error_dev(self, "couldn't establish power handler\n"); aprint_error_dev(self, "couldn't establish power handler\n");
} }