Changes in uspace/lib/c/generic/as.c [c6ae4c2:8d70937] in mainline

File:

• uspace/lib/c/generic/as.c (modified) (1 diff)

uspace/lib/c/generic/as.c

@@ -117 +117 @@
 /** Find mapping to physical address.
  *
- * @param      virt Virtual address to find mapping for.
- * @param[out] phys Physical adress.
- *
- * @return EOK on no error.
- * @retval ENOENT if no mapping was found.
- *
+ * @param address Virtual address in question (virtual).
+ * @param[out] frame Frame address (physical).
+ * @return Error code.
+ * @retval EOK No error, @p frame holds the translation.
+ * @retval ENOENT Mapping not found.
  */
-int as_get_physical_mapping(const void *virt, uintptr_t *phys)
+int as_get_physical_mapping(const void *address, uintptr_t *frame)
 {
-        return (int) __SYSCALL2(SYS_PAGE_FIND_MAPPING, (sysarg_t) virt,
-            (sysarg_t) phys);
+        uintptr_t tmp_frame;
+        uintptr_t virt = (uintptr_t) address;
+        
+        int rc = (int) __SYSCALL2(SYS_PAGE_FIND_MAPPING,
+            (sysarg_t) virt, (sysarg_t) &tmp_frame);
+        if (rc != EOK) {
+                return rc;
+        }
+        
+        if (frame != NULL) {
+                *frame = tmp_frame;
+        }
+        
+        return EOK;
 }