powerpc: Check rc of notifier chain for memory remove
The return code from invocation of the notifier for
pSeries_reconfig_chain during update of the device tree is not
checked. This causes writes to /proc/ppc64/ofdt to update memory
properties (i.e. ibm,dyamic-reconfiguration-memory) to always
return success, instead of the result of the notifier chain.
This happens specifically when we remove/add memory from the
device tree on machines using memory specified in the
ibm,dynamic-reconfiguration-memory property of the device tree.
Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c
index 7637bd3..c591a25 100644
--- a/arch/powerpc/platforms/pseries/reconfig.c
+++ b/arch/powerpc/platforms/pseries/reconfig.c
@@ -466,11 +466,11 @@
else
action = PSERIES_DRCONF_MEM_REMOVE;
- blocking_notifier_call_chain(&pSeries_reconfig_chain,
- action, value);
+ rc = blocking_notifier_call_chain(&pSeries_reconfig_chain,
+ action, value);
}
- return 0;
+ return rc;
}
/**
