From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Fri, 15 Dec 2006 04:40:08 +0000 (+1100)
Subject: [POWERPC] iSeries: fix viodasd init
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=fb8b50078458ba74c3d3f7bf05f5ddc27b88f051;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

[POWERPC] iSeries: fix viodasd init

Don't initialise viodasd except on legacy iSeries.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---

diff --git a/drivers/block/viodasd.c b/drivers/block/viodasd.c
index e19ba4ebcd4e..68592c336011 100644
--- a/drivers/block/viodasd.c
+++ b/drivers/block/viodasd.c
@@ -49,6 +49,7 @@
 #include <asm/iseries/hv_lp_event.h>
 #include <asm/iseries/hv_lp_config.h>
 #include <asm/iseries/vio.h>
+#include <asm/firmware.h>
 
 MODULE_DESCRIPTION("iSeries Virtual DASD");
 MODULE_AUTHOR("Dave Boutcher");
@@ -769,6 +770,11 @@ static int __init viodasd_init(void)
 {
 	int rc;
 
+	if (!firmware_has_feature(FW_FEATURE_ISERIES)) {
+		rc = -ENODEV;
+		goto early_fail;
+	}
+
 	/* Try to open to our host lp */
 	if (viopath_hostLp == HvLpIndexInvalid)
 		vio_set_hostlp();