powerpc/opal: Add inline function to get rc from an ASYNC_COMP opal_msg
An opal_msg of type OPAL_MSG_ASYNC_COMP contains the return code in the
params[1] struct member. However this isn't intuitive or obvious when
reading the code and requires that a user look at the skiboot
documentation or opal-api.h to verify this.
Add an inline function to get the return code from an opal_msg and update
call sites accordingly.
Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
diff --git a/drivers/rtc/rtc-opal.c b/drivers/rtc/rtc-opal.c
index 9c18d6f..ea20f62 100644
--- a/drivers/rtc/rtc-opal.c
+++ b/drivers/rtc/rtc-opal.c
@@ -134,7 +134,7 @@
goto exit;
}
- rc = be64_to_cpu(msg.params[1]);
+ rc = opal_get_async_rc(msg);
if (rc != OPAL_SUCCESS) {
rc = -EIO;
goto exit;
@@ -181,7 +181,7 @@
goto exit;
}
- rc = be64_to_cpu(msg.params[1]);
+ rc = opal_get_async_rc(msg);
if (rc != OPAL_SUCCESS)
rc = -EIO;