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More DeviceTree fixes for 4.0:

Browse source 
- Revert setting stdout-path as preferred console. This caused
 regressions in PowerMACs and other systems.
 
 - Yet another fix for stdout-path option parsing.
 
 - Fix error path handling in of_irq_parse_one
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Merge tag 'devicetree-fixes-for-4.0-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull more DeviceTree fixes vfom Rob Herring:

 - revert setting stdout-path as preferred console.  This caused
   regressions in PowerMACs and other systems.

 - yet another fix for stdout-path option parsing.

 - fix error path handling in of_irq_parse_one

* tag 'devicetree-fixes-for-4.0-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  Revert "of: Fix premature bootconsole disable with 'stdout-path'"
  of: handle both '/' and ':' in path strings
  of: unittest: Add option string test case with longer path
  of/irq: Fix of_irq_parse_one() returned error codes
This commit is contained in:
Linus Torvalds 2015-03-21 12:33:01 -07:00
parent e477f3e013 f64255b507
commit bb8ef2fbb8
3 changed files with 14 additions and 12 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

11
drivers/of/base.c
View file

@ -715,13 +715,8 @@ static struct device_node *__of_find_node_by_path(struct device_node *parent,
{
struct device_node *child;
int len;
const char *end;
end = strchr(path, ':');
if (!end)
end = strchrnul(path, '/');
len = end - path;
len = strcspn(path, "/:");
if (!len)
return NULL;
@ -1893,10 +1888,8 @@ void of_alias_scan(void * (*dt_alloc)(u64 size, u64 align))
name = of_get_property(of_chosen, "linux,stdout-path", NULL);
if (IS_ENABLED(CONFIG_PPC) && !name)
name = of_get_property(of_aliases, "stdout", NULL);
if (name) {
if (name)
of_stdout = of_find_node_opts_by_path(name, &of_stdout_options);
add_preferred_console("stdout-path", 0, NULL);
}
}
if (!of_aliases)

10
drivers/of/irq.c
View file

@ -290,7 +290,7 @@ int of_irq_parse_one(struct device_node *device, int index, struct of_phandle_ar
struct device_node *p;
const __be32 *intspec, *tmp, *addr;
u32 intsize, intlen;
int i, res = -EINVAL;
int i, res;
pr_debug("of_irq_parse_one: dev=%s, index=%d\n", of_node_full_name(device), index);
@ -323,15 +323,19 @@ int of_irq_parse_one(struct device_node *device, int index, struct of_phandle_ar
/* Get size of interrupt specifier */
tmp = of_get_property(p, "#interrupt-cells", NULL);
if (tmp == NULL)
if (tmp == NULL) {
res = -EINVAL;
goto out;
}
intsize = be32_to_cpu(*tmp);
pr_debug(" intsize=%d intlen=%d\n", intsize, intlen);
/* Check index */
if ((index + 1) * intsize > intlen)
if ((index + 1) * intsize > intlen) {
res = -EINVAL;
goto out;
}
/* Copy intspec into irq structure */
intspec += index * intsize;

5
drivers/of/unittest.c
View file

@ -97,6 +97,11 @@ static void __init of_selftest_find_node_by_name(void)
"option path test, subcase #1 failed\n");
of_node_put(np);
np = of_find_node_opts_by_path("/testcase-data/testcase-device1:test/option", &options);
selftest(np && !strcmp("test/option", options),
"option path test, subcase #2 failed\n");
of_node_put(np);
np = of_find_node_opts_by_path("/testcase-data:testoption", NULL);
selftest(np, "NULL option path test failed\n");
of_node_put(np);