From: Robin Holt <holt@sgi.com>
Date: Tue, 21 Apr 2009 19:24:53 +0000 (-0700)
Subject: sgi-xp/sgi-gru: allow modules to load on non-uv systems
X-Git-Tag: v2.6.30-rc3~11
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=commitdiff_plain;h=e873cff0fada2b0532ca5104d5b5f5b02aa442b2

sgi-xp/sgi-gru: allow modules to load on non-uv systems

For an upcoming distro release, we need to have the xp kernel module
loadable even when not on UV equipment.  The xpc module will not load.
This will allow one set of modules dependent upon xp to work on either UV
or non-UV equipment.

Signed-off-by: Robin Holt <holt@sgi.com>
Signed-off-by: Jack Steiner <steiner@sgi.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/drivers/misc/sgi-gru/grufile.c b/drivers/misc/sgi-gru/grufile.c
index 3e6e42d2f01b..bbefe77c67a9 100644
--- a/drivers/misc/sgi-gru/grufile.c
+++ b/drivers/misc/sgi-gru/grufile.c
@@ -375,7 +375,7 @@ static int __init gru_init(void)
 	void *gru_start_vaddr;
 
 	if (!is_uv_system())
-		return -ENODEV;
+		return 0;
 
 #if defined CONFIG_IA64
 	gru_start_paddr = 0xd000000000UL; /* ZZZZZZZZZZZZZZZZZZZ fixme */
diff --git a/drivers/misc/sgi-xp/xp_main.c b/drivers/misc/sgi-xp/xp_main.c
index 16f8dcab2da4..7896849b16dc 100644
--- a/drivers/misc/sgi-xp/xp_main.c
+++ b/drivers/misc/sgi-xp/xp_main.c
@@ -248,19 +248,19 @@ xp_init(void)
 	enum xp_retval ret;
 	int ch_number;
 
+	/* initialize the connection registration mutex */
+	for (ch_number = 0; ch_number < XPC_MAX_NCHANNELS; ch_number++)
+		mutex_init(&xpc_registrations[ch_number].mutex);
+
 	if (is_shub())
 		ret = xp_init_sn2();
 	else if (is_uv())
 		ret = xp_init_uv();
 	else
-		ret = xpUnsupported;
+		ret = 0;
 
 	if (ret != xpSuccess)
-		return -ENODEV;
-
-	/* initialize the connection registration mutex */
-	for (ch_number = 0; ch_number < XPC_MAX_NCHANNELS; ch_number++)
-		mutex_init(&xpc_registrations[ch_number].mutex);
+		return ret;
 
 	return 0;
 }