From: frowand.list@gmail.com
To: Rob Herring <robh+dt@kernel.org>,
Pantelis Antoniou <pantelis.antoniou@konsulko.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>, Alan Tull <atull@kernel.org>,
Moritz Fischer <mdf@kernel.org>
Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
devicetree@vger.kernel.org, linux-fpga@vger.kernel.org
Subject: [PATCH v2 04/18] powerpc/pseries: add of_node_put() in dlpar_detach_node()
Date: Fri, 12 Oct 2018 21:53:24 -0700 [thread overview]
Message-ID: <1539406418-18162-5-git-send-email-frowand.list@gmail.com> (raw)
In-Reply-To: <1539406418-18162-1-git-send-email-frowand.list@gmail.com>
From: Frank Rowand <frank.rowand@sony.com>
"of: overlay: add missing of_node_get() in __of_attach_node_sysfs"
added a missing of_node_get() to __of_attach_node_sysfs(). This
results in a refcount imbalance for nodes attached with
dlpar_attach_node(). The calling sequence from dlpar_attach_node()
to __of_attach_node_sysfs() is:
dlpar_attach_node()
of_attach_node()
__of_attach_node_sysfs()
Signed-off-by: Frank Rowand <frank.rowand@sony.com>
---
***** UNTESTED. I need people with the affected PowerPC systems
***** (systems that dynamically allocate and deallocate
***** devicetree nodes) to test this patch.
arch/powerpc/platforms/pseries/dlpar.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c
index a0b20c03f078..e3010b14aea5 100644
--- a/arch/powerpc/platforms/pseries/dlpar.c
+++ b/arch/powerpc/platforms/pseries/dlpar.c
@@ -272,6 +272,8 @@ int dlpar_detach_node(struct device_node *dn)
if (rc)
return rc;
+ of_node_put(dn);
+
return 0;
}
--
Frank Rowand <frank.rowand@sony.com>
next prev parent reply other threads:[~2018-10-13 4:56 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-13 4:53 [PATCH v2 00/18] of: overlay: validation checks, subsequent fixes frowand.list
2018-10-13 4:53 ` [PATCH v2 01/18] of: overlay: add tests to validate kfrees from overlay removal frowand.list
2018-10-13 4:53 ` [PATCH v2 02/18] of: overlay: add missing of_node_put() after add new node to changeset frowand.list
2018-10-13 4:53 ` [PATCH v2 03/18] of: overlay: add missing of_node_get() in __of_attach_node_sysfs frowand.list
2018-10-13 4:53 ` frowand.list [this message]
2018-10-13 4:53 ` [PATCH v2 05/18] of: overlay: use prop add changeset entry for property in new nodes frowand.list
2018-10-13 4:53 ` [PATCH v2 06/18] of: overlay: do not duplicate properties from overlay for " frowand.list
2018-10-13 4:53 ` [PATCH v2 07/18] of: dynamic: change type of of_{at,de}tach_node() to void frowand.list
2018-10-13 4:53 ` [PATCH v2 08/18] of: overlay: reorder fields in struct fragment frowand.list
2018-10-13 4:53 ` [PATCH v2 09/18] of: overlay: validate overlay properties #address-cells and #size-cells frowand.list
2018-10-13 4:53 ` [PATCH v2 10/18] of: overlay: make all pr_debug() and pr_err() messages unique frowand.list
2018-10-13 4:53 ` [PATCH v2 11/18] of: overlay: test case of two fragments adding same node frowand.list
2018-10-13 4:53 ` [PATCH v2 12/18] of: overlay: check prevents multiple fragments add or delete " frowand.list
2018-10-13 12:51 ` Joe Perches
2018-10-13 18:21 ` Frank Rowand
2018-10-15 0:29 ` Frank Rowand
2018-10-13 4:53 ` [PATCH v2 13/18] of: overlay: check prevents multiple fragments touching same property frowand.list
2018-10-13 4:53 ` [PATCH v2 14/18] of: unittest: remove unused of_unittest_apply_overlay() argument frowand.list
2018-10-13 4:53 ` [PATCH v2 15/18] of: overlay: set node fields from properties when add new overlay node frowand.list
2018-10-13 4:53 ` [PATCH v2 16/18] of: unittest: allow base devicetree to have symbol metadata frowand.list
2018-10-13 4:53 ` [PATCH v2 17/18] of: unittest: find overlays[] entry by name instead of index frowand.list
2018-10-13 4:53 ` [PATCH v2 18/18] of: unittest: initialize args before calling of_*parse_*() frowand.list
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