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authorDavid S. Miller <davem@davemloft.net>2020-04-26 05:24:42 +0300
committerDavid S. Miller <davem@davemloft.net>2020-04-26 06:18:53 +0300
commitd483389678f9e03d53f226641ea39679debcbc81 (patch)
treee33c9e59627e806ef97be9ef66c48afb1e4ab393 /drivers/of
parent6033cebdfff9b10192eb254e8cc60fedd595ea7f (diff)
parentb2768df24ec400dd4f7fa79542f797e904812053 (diff)
downloadlinux-d483389678f9e03d53f226641ea39679debcbc81.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Simple overlapping changes to linux/vermagic.h Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/of')
-rw-r--r--drivers/of/overlay.c2
-rw-r--r--drivers/of/unittest-data/overlay_bad_add_dup_prop.dts23
-rw-r--r--drivers/of/unittest.c28
3 files changed, 40 insertions, 13 deletions
diff --git a/drivers/of/overlay.c b/drivers/of/overlay.c
index c9219fddf44b..50bbe0edf538 100644
--- a/drivers/of/overlay.c
+++ b/drivers/of/overlay.c
@@ -261,6 +261,8 @@ static struct property *dup_and_fixup_symbol_prop(
of_property_set_flag(new_prop, OF_DYNAMIC);
+ kfree(target_path);
+
return new_prop;
err_free_new_prop:
diff --git a/drivers/of/unittest-data/overlay_bad_add_dup_prop.dts b/drivers/of/unittest-data/overlay_bad_add_dup_prop.dts
index c190da54f175..6327d1ffb963 100644
--- a/drivers/of/unittest-data/overlay_bad_add_dup_prop.dts
+++ b/drivers/of/unittest-data/overlay_bad_add_dup_prop.dts
@@ -3,22 +3,37 @@
/plugin/;
/*
- * &electric_1/motor-1 and &spin_ctrl_1 are the same node:
- * /testcase-data-2/substation@100/motor-1
+ * &electric_1/motor-1/electric and &spin_ctrl_1/electric are the same node:
+ * /testcase-data-2/substation@100/motor-1/electric
*
* Thus the property "rpm_avail" in each fragment will
* result in an attempt to update the same property twice.
* This will result in an error and the overlay apply
* will fail.
+ *
+ * The previous version of this test did not include the extra
+ * level of node 'electric'. That resulted in the 'rpm_avail'
+ * property being located in the pre-existing node 'motor-1'.
+ * Modifying a property results in a WARNING that a memory leak
+ * will occur if the overlay is removed. Since the overlay apply
+ * fails, the memory leak does actually occur, and kmemleak will
+ * further report the memory leak if CONFIG_DEBUG_KMEMLEAK is
+ * enabled. Adding the overlay node 'electric' avoids the
+ * memory leak and thus people who use kmemleak will not
+ * have to debug this non-problem again.
*/
&electric_1 {
motor-1 {
- rpm_avail = < 100 >;
+ electric {
+ rpm_avail = < 100 >;
+ };
};
};
&spin_ctrl_1 {
- rpm_avail = < 100 200 >;
+ electric {
+ rpm_avail = < 100 200 >;
+ };
};
diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index 7e27670c3616..398de04fd19c 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -861,6 +861,10 @@ static void __init of_unittest_changeset(void)
unittest(!of_changeset_revert(&chgset), "revert failed\n");
of_changeset_destroy(&chgset);
+
+ of_node_put(n1);
+ of_node_put(n2);
+ of_node_put(n21);
#endif
}
@@ -1243,10 +1247,13 @@ static void __init of_unittest_platform_populate(void)
of_platform_populate(np, match, NULL, &test_bus->dev);
for_each_child_of_node(np, child) {
- for_each_child_of_node(child, grandchild)
- unittest(of_find_device_by_node(grandchild),
+ for_each_child_of_node(child, grandchild) {
+ pdev = of_find_device_by_node(grandchild);
+ unittest(pdev,
"Could not create device for node '%pOFn'\n",
grandchild);
+ of_dev_put(pdev);
+ }
}
of_platform_depopulate(&test_bus->dev);
@@ -3087,8 +3094,11 @@ static __init void of_unittest_overlay_high_level(void)
goto err_unlock;
}
if (__of_add_property(of_symbols, new_prop)) {
+ kfree(new_prop->name);
+ kfree(new_prop->value);
+ kfree(new_prop);
/* "name" auto-generated by unflatten */
- if (!strcmp(new_prop->name, "name"))
+ if (!strcmp(prop->name, "name"))
continue;
unittest(0, "duplicate property '%s' in overlay_base node __symbols__",
prop->name);
@@ -3171,21 +3181,21 @@ static __init void of_unittest_overlay_high_level(void)
"OF: overlay: ERROR: multiple fragments add and/or delete node /testcase-data-2/substation@100/motor-1/controller");
EXPECT_BEGIN(KERN_ERR,
- "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/motor-1/rpm_avail");
+ "OF: overlay: ERROR: multiple fragments add and/or delete node /testcase-data-2/substation@100/motor-1/electric");
EXPECT_BEGIN(KERN_ERR,
- "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/motor-1/rpm_avail");
+ "OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/electric/rpm_avail");
EXPECT_BEGIN(KERN_ERR,
- "OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/rpm_avail");
+ "OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/electric/name");
unittest(overlay_data_apply("overlay_bad_add_dup_prop", NULL),
"Adding overlay 'overlay_bad_add_dup_prop' failed\n");
EXPECT_END(KERN_ERR,
- "OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/rpm_avail");
+ "OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/electric/name");
EXPECT_END(KERN_ERR,
- "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/motor-1/rpm_avail");
+ "OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/electric/rpm_avail");
EXPECT_END(KERN_ERR,
- "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/motor-1/rpm_avail");
+ "OF: overlay: ERROR: multiple fragments add and/or delete node /testcase-data-2/substation@100/motor-1/electric");
unittest(overlay_data_apply("overlay_bad_phandle", NULL),
"Adding overlay 'overlay_bad_phandle' failed\n");