[RFC PATCH 04/13] core: ofnode: Fix inconsistent returns of *_read_u32_array

[Sean Anderson]

The documentation for dev_read_u32_array says the return value is an errno,
but fdtdec_get_int_array returns FDT_ERRs. Convert the return values so
callers can handle errors properly.

Signed-off-by: Sean Anderson <sean...@gmail.com>
---

 drivers/core/ofnode.c | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/drivers/core/ofnode.c b/drivers/core/ofnode.c
index 7a5f4c0a73..c071b968d5 100644
--- a/drivers/core/ofnode.c
+++ b/drivers/core/ofnode.c
@@ -220,9 +220,18 @@ int ofnode_read_u32_array(ofnode node, const char 
*propname,
                return of_read_u32_array(ofnode_to_np(node), propname,
                                         out_values, sz);
        } else {
-               return fdtdec_get_int_array(gd->fdt_blob,
-                                           ofnode_to_offset(node), propname,
-                                           out_values, sz);
+               int err = fdtdec_get_int_array(gd->fdt_blob,
+                                              ofnode_to_offset(node), propname,
+                                              out_values, sz);
+
+               switch (err) {
+               case FDT_ERR_NOTFOUND:
+                       return -EINVAL;
+               case FDT_ERR_BADLAYOUT:
+                       return -EOVERFLOW;
+               default:
+                       return 0;
+               }
        }
 }
 
-- 
2.29.2