diff options
| author | Frederic Barrat <fbarrat@linux.ibm.com> | 2019-11-21 14:49:13 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-01-23 21:31:17 +1100 |
| commit | 658ab186dd22060408d94f5c5a6d02d809baba44 (patch) | |
| tree | 23b3ad148f6ad7c3a8a59639383a018d62f6f5ac | |
| parent | bbb789046084d18fff1a32a7bcdeca36dfa0ac14 (diff) | |
pci/hotplug/pnv-php: Remove erroneous warning
On powernv, when removing a device through hotplug, the following
warning is logged:
Invalid refcount <.> on <...>
It may be incorrect, the refcount may be set to a higher value than 1
and be valid. of_detach_node() can drop more than one reference. As it
doesn't seem trivial to assert the correct value, let's remove the
warning.
Reviewed-by: Alastair D'Silva <alastair@d-silva.org>
Reviewed-by: Andrew Donnellan <ajd@linux.ibm.com>
Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191121134918.7155-7-fbarrat@linux.ibm.com
| -rw-r--r-- | drivers/pci/hotplug/pnv_php.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/drivers/pci/hotplug/pnv_php.c b/drivers/pci/hotplug/pnv_php.c index d7b2b47bc33e..6037983c6e46 100644 --- a/drivers/pci/hotplug/pnv_php.c +++ b/drivers/pci/hotplug/pnv_php.c @@ -151,17 +151,11 @@ static void pnv_php_rmv_pdns(struct device_node *dn) static void pnv_php_detach_device_nodes(struct device_node *parent) { struct device_node *dn; - int refcount; for_each_child_of_node(parent, dn) { pnv_php_detach_device_nodes(dn); of_node_put(dn); - refcount = kref_read(&dn->kobj.kref); - if (refcount != 1) - pr_warn("Invalid refcount %d on <%pOF>\n", - refcount, dn); - of_detach_node(dn); } } |