[PATCH] powerpc/powernv: convert OPAL codes returned by sysparam calls
From: Cédric Le Goater <hidden>
Date: 2015-04-08 07:31:32
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 <redacted>
---
arch/powerpc/platforms/powernv/opal-sysparam.c | 12 ++++++++----
arch/powerpc/platforms/powernv/opal.c | 1 +
2 files changed, 9 insertions(+), 4 deletions(-)
Index: linux.git/arch/powerpc/platforms/powernv/opal-sysparam.c
===================================================================--- linux.git.orig/arch/powerpc/platforms/powernv/opal-sysparam.c
+++ linux.git/arch/powerpc/platforms/powernv/opal-sysparam.c@@ -55,8 +55,10 @@ static ssize_t opal_get_sys_param(u32 pa } 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 pa 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_ 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_ 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);
Index: linux.git/arch/powerpc/platforms/powernv/opal.c ===================================================================
--- linux.git.orig/arch/powerpc/platforms/powernv/opal.c
+++ linux.git/arch/powerpc/platforms/powernv/opal.c@@ -903,6 +903,7 @@ 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;