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 <[EMAIL PROTECTED]>
---
Index: linux-2.6-paulus/arch/powerpc/platforms/pseries/reconfig.c
===================================================================
--- linux-2.6-paulus.orig/arch/powerpc/platforms/pseries/reconfig.c
2008-08-25 13:08:27.000000000 -0500
+++ linux-2.6-paulus/arch/powerpc/platforms/pseries/reconfig.c 2008-08-25
13:45:12.000000000 -0500
@@ -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;
}
/**
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