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| author | Cédric Le Goater | 2015-03-30 12:06:09 +0200 |
|---|---|---|
| committer | Michael Ellerman | 2015-03-31 05:50:33 +0200 |
| commit | e3c5c2e0bc857c7cbdb81f35a6b90236c5f330e9 (patch) | |
| tree | bf62f0f6a535426d53b389a2e1aab229461ea302 /arch/powerpc/platforms/powernv/opal.c | |
| parent | powerpc: Use bool function return values of true/false not 1/0 (diff) | |
| download | kernel-qcow2-linux-e3c5c2e0bc857c7cbdb81f35a6b90236c5f330e9.tar.gz kernel-qcow2-linux-e3c5c2e0bc857c7cbdb81f35a6b90236c5f330e9.tar.xz kernel-qcow2-linux-e3c5c2e0bc857c7cbdb81f35a6b90236c5f330e9.zip | |
powerpc/powernv: convert codes returned by OPAL calls
OPAL has its own list of return codes. The patch provides a translation
of such codes in errnos for the opal_sensor_read call, and possibly
others if needed.
Signed-off-by: Cédric Le Goater <clg@fr.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/platforms/powernv/opal.c')
| -rw-r--r-- | arch/powerpc/platforms/powernv/opal.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c index d403b2b08626..3fb981c0ca80 100644 --- a/arch/powerpc/platforms/powernv/opal.c +++ b/arch/powerpc/platforms/powernv/opal.c @@ -931,6 +931,25 @@ void opal_free_sg_list(struct opal_sg_list *sg) } } +int opal_error_code(int rc) +{ + switch (rc) { + case OPAL_SUCCESS: return 0; + + case OPAL_PARAMETER: return -EINVAL; + case OPAL_ASYNC_COMPLETION: return -EINPROGRESS; + case OPAL_BUSY_EVENT: return -EBUSY; + case OPAL_NO_MEM: return -ENOMEM; + + case OPAL_UNSUPPORTED: return -EIO; + case OPAL_HARDWARE: return -EIO; + case OPAL_INTERNAL_ERROR: return -EIO; + default: + pr_err("%s: unexpected OPAL error %d\n", __func__, rc); + return -EIO; + } +} + EXPORT_SYMBOL_GPL(opal_poll_events); EXPORT_SYMBOL_GPL(opal_rtc_read); EXPORT_SYMBOL_GPL(opal_rtc_write); |