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---
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yaml
---
r: 350817
b: refs/heads/master
c: 23ce04c
h: refs/heads/master
i:
  350815: bb606af
v: v3
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Grant Likely committed Feb 13, 2013
1 parent fcd08f5 commit acd6c82
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Showing 2 changed files with 20 additions and 8 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: cabb7d5b7896a4d307ea6ad6d3bd045810544151
refs/heads/master: 23ce04c0734e33b1042273b0ed11a8e4f7f988ca
26 changes: 19 additions & 7 deletions trunk/drivers/of/base.c
Original file line number Diff line number Diff line change
Expand Up @@ -1096,7 +1096,7 @@ int of_parse_phandle_with_args(const struct device_node *np, const char *list_na
struct of_phandle_args *out_args)
{
const __be32 *list, *list_end;
int size, cur_index = 0;
int rc = 0, size, cur_index = 0;
uint32_t count = 0;
struct device_node *node = NULL;
phandle phandle;
Expand All @@ -1109,6 +1109,7 @@ int of_parse_phandle_with_args(const struct device_node *np, const char *list_na

/* Loop over the phandles until all the requested entry is found */
while (list < list_end) {
rc = -EINVAL;
count = 0;

/*
Expand All @@ -1125,13 +1126,13 @@ int of_parse_phandle_with_args(const struct device_node *np, const char *list_na
if (!node) {
pr_err("%s: could not find phandle\n",
np->full_name);
break;
goto err;
}
if (of_property_read_u32(node, cells_name, &count)) {
pr_err("%s: could not get %s for %s\n",
np->full_name, cells_name,
node->full_name);
break;
goto err;
}

/*
Expand All @@ -1141,7 +1142,7 @@ int of_parse_phandle_with_args(const struct device_node *np, const char *list_na
if (list + count > list_end) {
pr_err("%s: arguments longer than property\n",
np->full_name);
break;
goto err;
}
}

Expand All @@ -1151,9 +1152,10 @@ int of_parse_phandle_with_args(const struct device_node *np, const char *list_na
* index matches, then fill the out_args structure and return,
* or return -ENOENT for an empty entry.
*/
rc = -ENOENT;
if (cur_index == index) {
if (!phandle)
return -ENOENT;
goto err;

if (out_args) {
int i;
Expand All @@ -1164,6 +1166,10 @@ int of_parse_phandle_with_args(const struct device_node *np, const char *list_na
for (i = 0; i < count; i++)
out_args->args[i] = be32_to_cpup(list++);
}

/* Found it! return success */
if (node)
of_node_put(node);
return 0;
}

Expand All @@ -1173,10 +1179,16 @@ int of_parse_phandle_with_args(const struct device_node *np, const char *list_na
cur_index++;
}

/* Loop exited without finding a valid entry; return an error */
/*
* Unlock node before returning result; will be one of:
* -ENOENT : index is for empty phandle
* -EINVAL : parsing error on data
*/
rc = -ENOENT;
err:
if (node)
of_node_put(node);
return -EINVAL;
return rc;
}
EXPORT_SYMBOL(of_parse_phandle_with_args);

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