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| author | Srikar Dronamraju <srikar@linux.vnet.ibm.com> | 2020-01-29 19:22:57 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-03-04 22:44:30 +1100 |
| commit | e7214ae9d85aa325c9f3cb34bf4fad7f112861d7 (patch) | |
| tree | a7452c3af7aedf721456c38d9743b306c1cc43c9 | |
| parent | a05f0e5be4e81e4977d3f92aaf7688ee0cb7d5db (diff) | |
| download | linux-e7214ae9d85aa325c9f3cb34bf4fad7f112861d7.tar.gz linux-e7214ae9d85aa325c9f3cb34bf4fad7f112861d7.tar.bz2 linux-e7214ae9d85aa325c9f3cb34bf4fad7f112861d7.zip | |
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
| -rw-r--r-- | arch/powerpc/platforms/pseries/vphn.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/pseries/vphn.c b/arch/powerpc/platforms/pseries/vphn.c index 3f07bf6c670e..cca474a2c396 100644 --- a/arch/powerpc/platforms/pseries/vphn.c +++ b/arch/powerpc/platforms/pseries/vphn.c @@ -82,7 +82,8 @@ 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); - vphn_unpack_associativity(retbuf, associativity); + if (rc == H_SUCCESS) + vphn_unpack_associativity(retbuf, associativity); return rc; } |