Module Name:    src
Committed By:   snj
Date:           Fri May 12 04:59:12 UTC 2017

Modified Files:
        src/sys/dev/pci/hdaudio [netbsd-7]: hdaudio_pci.c

Log Message:
Pull up following revision(s) (requested by khorben in ticket #1369):
        sys/dev/pci/hdaudio/hdaudio_pci.c: patch based on revision 1.6 of 
sys/dev/pci/hdaudio_pci.c
Always allow hdaudio(4) to suspend
Sometimes hdaudio(4) can fail to attach, but the device remains in the
tree. Even though the PMF registration is performed, it is explicitly
de-registered in the code path for errors - therefore preventing suspending
later. This patch makes sure PMF registration is performed accordingly upon
errors as well.
No objection on tech-kern@.
Tested on a Lenovo ThinkPad T440s (amd64).


To generate a diff of this commit:
cvs rdiff -u -r1.12.4.2 -r1.12.4.3 src/sys/dev/pci/hdaudio/hdaudio_pci.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/pci/hdaudio/hdaudio_pci.c
diff -u src/sys/dev/pci/hdaudio/hdaudio_pci.c:1.12.4.2 src/sys/dev/pci/hdaudio/hdaudio_pci.c:1.12.4.3
--- src/sys/dev/pci/hdaudio/hdaudio_pci.c:1.12.4.2	Fri Jul 17 04:44:41 2015
+++ src/sys/dev/pci/hdaudio/hdaudio_pci.c	Fri May 12 04:59:12 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: hdaudio_pci.c,v 1.12.4.2 2015/07/17 04:44:41 snj Exp $ */
+/* $NetBSD: hdaudio_pci.c,v 1.12.4.3 2017/05/12 04:59:12 snj Exp $ */
 
 /*
  * Copyright (c) 2009 Precedence Technologies Ltd <[email protected]>
@@ -34,7 +34,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: hdaudio_pci.c,v 1.12.4.2 2015/07/17 04:44:41 snj Exp $");
+__KERNEL_RCSID(0, "$NetBSD: hdaudio_pci.c,v 1.12.4.3 2017/05/12 04:59:12 snj Exp $");
 
 #include <sys/types.h>
 #include <sys/param.h>
@@ -156,9 +156,6 @@ hdaudio_pci_attach(device_t parent, devi
 	}
 	aprint_normal_dev(self, "interrupting at %s\n", intrstr);
 
-	if (!pmf_device_register(self, NULL, hdaudio_pci_resume))
-		aprint_error_dev(self, "couldn't establish power handler\n");
-
 	hdaudio_pci_reinit(sc);
 
 	/* Attach bus-independent HD audio layer */
@@ -172,8 +169,11 @@ hdaudio_pci_attach(device_t parent, devi
 		csr = pci_conf_read(sc->sc_pc, sc->sc_tag, PCI_COMMAND_STATUS_REG);
 		csr &= ~(PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_BACKTOBACK_ENABLE);
 		pci_conf_write(sc->sc_pc, sc->sc_tag, PCI_COMMAND_STATUS_REG, csr);
-		pmf_device_deregister(self);
+		if (!pmf_device_register(self, NULL, NULL))
+			aprint_error_dev(self, "couldn't establish power handler\n");
 	}
+	else if (!pmf_device_register(self, NULL, hdaudio_pci_resume))
+		aprint_error_dev(self, "couldn't establish power handler\n");
 }
 
 static int

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