Commit e7214ae9 authored Jan 29, 2020 by Srikar Dronamraju Committed by Michael Ellerman Mar 04, 2020

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

parent a05f0e5b

arch/powerpc/platforms/pseries/vphn.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -82,6 +82,7 @@ long hcall_vphn(unsigned long cpu, u64 flags, __be32 *associativity)
		long retbuf[PLPAR_HCALL9_BUFSIZE] = {0};

		rc = plpar_hcall9(H_HOME_NODE_ASSOCIATIVITY, retbuf, flags, cpu);
		if (rc == H_SUCCESS)
		vphn_unpack_associativity(retbuf, associativity);

		return rc;

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