From: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: grant.likely@linaro.org, nfont@linux.vnet.ibm.com,
Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
Subject: [PATCH] powerpc/pseries: dynamically added OF nodes need to call of_node_init
Date: Wed, 9 Jul 2014 21:20:05 -0400 [thread overview]
Message-ID: <1404955205-12847-1-git-send-email-tyreld@linux.vnet.ibm.com> (raw)
Commit 75b57ecf9 refactored device tree nodes to use kobjects such that they
can be exposed via /sysfs. A secondary commit 0829f6d1f furthered this rework
by moving the kobect initialization logic out of of_node_add into its own
of_node_init function. The inital commit removed the existing kref_init calls
in the pseries dlpar code with the assumption kobject initialization would
occur in of_node_add. The second commit had the side effect of triggering a
BUG_ON as a result of dynamically added nodes being uninitialized.
This patch fixes this by adding of_node_init calls in place of the previously
removed kref_init calls.
Signed-off-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
---
arch/powerpc/platforms/pseries/dlpar.c | 1 +
arch/powerpc/platforms/pseries/reconfig.c | 1 +
2 files changed, 2 insertions(+)
diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c
index 022b38e..2d0b4d6 100644
--- a/arch/powerpc/platforms/pseries/dlpar.c
+++ b/arch/powerpc/platforms/pseries/dlpar.c
@@ -86,6 +86,7 @@ static struct device_node *dlpar_parse_cc_node(struct cc_workarea *ccwa,
}
of_node_set_flag(dn, OF_DYNAMIC);
+ of_node_init(dn);
return dn;
}
diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c
index 0435bb6..1c0a60d 100644
--- a/arch/powerpc/platforms/pseries/reconfig.c
+++ b/arch/powerpc/platforms/pseries/reconfig.c
@@ -69,6 +69,7 @@ static int pSeries_reconfig_add_node(const char *path, struct property *proplist
np->properties = proplist;
of_node_set_flag(np, OF_DYNAMIC);
+ of_node_init(np);
np->parent = derive_parent(path);
if (IS_ERR(np->parent)) {
--
1.7.12.4
next reply other threads:[~2014-07-10 1:28 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-10 1:20 Tyrel Datwyler [this message]
2014-07-10 2:33 ` [PATCH] powerpc/pseries: dynamically added OF nodes need to call of_node_init Michael Ellerman
2014-07-10 13:40 ` Nathan Fontenot
2014-07-10 18:36 ` Tyrel Datwyler
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