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powerpc/vphn: Check for error from hcall_vphn
authorSrikar Dronamraju <srikar@linux.vnet.ibm.com>
Wed, 29 Jan 2020 13:52:57 +0000 (19:22 +0530)
committerMichael Ellerman <mpe@ellerman.id.au>
Wed, 4 Mar 2020 11:44:30 +0000 (22:44 +1100)
commite7214ae9d85aa325c9f3cb34bf4fad7f112861d7
treea7452c3af7aedf721456c38d9743b306c1cc43c9
parenta05f0e5be4e81e4977d3f92aaf7688ee0cb7d5db
powerpc/vphn: Check for error from hcall_vphn

There is no value in unpacking associativity, if
H_HOME_NODE_ASSOCIATIVITY hcall has returned an error.

Signed-off-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Reported-by: Abdul Haleem <abdhalee@linux.vnet.ibm.com>
Reviewed-by: Nathan Lynch <nathanl@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200129135301.24739-2-srikar@linux.vnet.ibm.com
arch/powerpc/platforms/pseries/vphn.c