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Subject[RFC PATCH 08/13] of: Update structure of code, remove BUG_ON()
Date
From: Frank Rowand <frank.rowand@am.sony.com>

Signed-off-by: Frank Rowand <frank.rowand@am.sony.com>
---
drivers/of/resolver.c | 48 +++++++++++++++++-------------------------------
1 file changed, 17 insertions(+), 31 deletions(-)

diff --git a/drivers/of/resolver.c b/drivers/of/resolver.c
index 0778747cdd58..708daca1d522 100644
--- a/drivers/of/resolver.c
+++ b/drivers/of/resolver.c
@@ -136,8 +136,8 @@ static int update_usages_of_a_phandle_reference(struct device_node *overlay,
err = -EINVAL;
goto err_fail;
}
-
*s++ = '\0';
+
err = kstrtoint(s, 10, &offset);
if (err)
goto err_fail;
@@ -219,11 +219,9 @@ static int adjust_local_phandle_references(struct device_node *local_fixups,
if (off >= prop->length || (off + 4) > prop->length)
return -EINVAL;

- if (phandle_delta) {
- phandle = be32_to_cpu(*(__be32 *)(prop->value + off));
- phandle += phandle_delta;
- *(__be32 *)(prop->value + off) = cpu_to_be32(phandle);
- }
+ phandle = be32_to_cpu(*(__be32 *)(prop->value + off));
+ phandle += phandle_delta;
+ *(__be32 *)(prop->value + off) = cpu_to_be32(phandle);
}
}

@@ -267,48 +265,36 @@ int of_resolve_phandles(struct device_node *overlay)
phandle phandle, phandle_delta;
int err;

- if (!overlay)
- pr_err("%s: null overlay\n", __func__);
- if (overlay && !of_node_check_flag(overlay, OF_DETACHED))
- pr_err("%s: node %s not detached\n", __func__,
- overlay->full_name);
- if (!overlay || !of_node_check_flag(overlay, OF_DETACHED))
+ if (!overlay) {
+ pr_err("null overlay\n");
+ return -EINVAL;
+ }
+ if (!of_node_check_flag(overlay, OF_DETACHED)) {
+ pr_err("overlay not detached\n");
return -EINVAL;
+ }

phandle_delta = live_tree_max_phandle() + 1;
adjust_overlay_phandles(overlay, phandle_delta);

- local_fixups = NULL;
for_each_child_of_node(overlay, local_fixups)
if (!of_node_cmp(local_fixups->name, "__local_fixups__"))
break;

- if (local_fixups != NULL) {
- err = adjust_local_phandle_references(local_fixups,
- overlay, 0);
- if (err)
- return err;
+ err = adjust_local_phandle_references(local_fixups, overlay, phandle_delta);
+ if (err)
+ return err;

- BUG_ON(adjust_local_phandle_references(local_fixups,
- overlay, phandle_delta));
- }
-
- tree_symbols = NULL;
overlay_symbols = NULL;
overlay_fixups = NULL;

tree_symbols = of_find_node_by_path("/__symbols__");

for_each_child_of_node(overlay, child) {
-
- if (!overlay_symbols && !of_node_cmp(child->name, "__symbols__"))
+ if (!of_node_cmp(child->name, "__symbols__"))
overlay_symbols = child;
-
- if (!overlay_fixups && !of_node_cmp(child->name, "__fixups__"))
+ if (!of_node_cmp(child->name, "__fixups__"))
overlay_fixups = child;
-
- if (overlay_symbols && overlay_fixups)
- break;
}

if (!overlay_fixups) {
@@ -317,7 +303,7 @@ int of_resolve_phandles(struct device_node *overlay)
}

if (!tree_symbols) {
- pr_err("%s: no symbols in root of device tree.\n", __func__);
+ pr_err("no symbols in root of device tree.\n");
err = -EINVAL;
goto out;
}
--
1.9.1
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