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authorLinus Torvalds <torvalds@linux-foundation.org>2015-03-21 12:33:01 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-03-21 12:33:01 -0700
commitbb8ef2fbb836c159ba847757123b8e33284406f8 (patch)
treefee67c32e5ada2b6bd611b5c702ffb56d7d96671
parente477f3e01304f011f2fbc416241439019bf890ea (diff)
parentf64255b5072d9c46cef8655d51cf7e10285abed7 (diff)
downloadlinux-sh-bb8ef2fbb836c159ba847757123b8e33284406f8.tar.gz
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
-rw-r--r--drivers/of/base.c11
-rw-r--r--drivers/of/irq.c10
-rw-r--r--drivers/of/unittest.c5
3 files changed, 14 insertions, 12 deletions
diff --git a/drivers/of/base.c b/drivers/of/base.c
index adb8764861c0..8f165b112e03 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -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)
diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index 0d7765807f49..1a7980692f25 100644
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -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;
diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index aba8946cac46..52c45c7df07f 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -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);