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powerpc/powernv: convert OPAL codes returned by sysparam calls

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The opal_{get,set}_param calls return internal error codes which need
to be translated in errnos in Linux.

Signed-off-by: Cédric Le Goater <clg@fr.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Cédric Le Goater 2015-04-08 09:31:10 +02:00 committed by Michael Ellerman
parent 6f7f0b3df6
commit 14aae78f08
2 changed files with 9 additions and 4 deletions
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12
arch/powerpc/platforms/powernv/opal-sysparam.c
View file

@ -55,8 +55,10 @@ static ssize_t opal_get_sys_param(u32 param_id, u32 length, void *buffer)
}
ret = opal_get_param(token, param_id, (u64)buffer, length);
if (ret != OPAL_ASYNC_COMPLETION)
if (ret != OPAL_ASYNC_COMPLETION) {
ret = opal_error_code(ret);
goto out_token;
}
ret = opal_async_wait_response(token, &msg);
if (ret) {
@ -65,7 +67,7 @@ static ssize_t opal_get_sys_param(u32 param_id, u32 length, void *buffer)
goto out_token;
}
ret = be64_to_cpu(msg.params[1]);
ret = opal_error_code(be64_to_cpu(msg.params[1]));
out_token:
opal_async_release_token(token);
@ -89,8 +91,10 @@ static int opal_set_sys_param(u32 param_id, u32 length, void *buffer)
ret = opal_set_param(token, param_id, (u64)buffer, length);
if (ret != OPAL_ASYNC_COMPLETION)
if (ret != OPAL_ASYNC_COMPLETION) {
ret = opal_error_code(ret);
goto out_token;
}
ret = opal_async_wait_response(token, &msg);
if (ret) {
@ -99,7 +103,7 @@ static int opal_set_sys_param(u32 param_id, u32 length, void *buffer)
goto out_token;
}
ret = be64_to_cpu(msg.params[1]);
ret = opal_error_code(be64_to_cpu(msg.params[1]));
out_token:
opal_async_release_token(token);

1
arch/powerpc/platforms/powernv/opal.c
View file

@ -830,6 +830,7 @@ int opal_error_code(int rc)
case OPAL_ASYNC_COMPLETION: return -EINPROGRESS;
case OPAL_BUSY_EVENT: return -EBUSY;
case OPAL_NO_MEM: return -ENOMEM;
case OPAL_PERMISSION: return -EPERM;
case OPAL_UNSUPPORTED: return -EIO;
case OPAL_HARDWARE: return -EIO;