diff options
Diffstat (limited to 'drivers/of/unittest-data/overlay_bad_add_dup_prop.dtso')
-rw-r--r-- | drivers/of/unittest-data/overlay_bad_add_dup_prop.dtso | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/of/unittest-data/overlay_bad_add_dup_prop.dtso b/drivers/of/unittest-data/overlay_bad_add_dup_prop.dtso new file mode 100644 index 0000000000..e03f791655 --- /dev/null +++ b/drivers/of/unittest-data/overlay_bad_add_dup_prop.dtso @@ -0,0 +1,38 @@ +// SPDX-License-Identifier: GPL-2.0 +/dts-v1/; +/plugin/; + +/* + * &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 { + electric { + rpm_avail = <100>; + }; + }; +}; + +&spin_ctrl_1 { + electric { + rpm_avail = <100 200>; + }; +}; |