resource, kunit: fix user-after-free in resource_test_region_intersects()

In resource_test_insert_resource(), the pointer is used in error message
after kfree(). This is user-after-free. To fix th

resource, kunit: fix user-after-free in resource_test_region_intersects()

In resource_test_insert_resource(), the pointer is used in error message
after kfree(). This is user-after-free. To fix this, we need to call
kunit_add_action_or_reset() to schedule memory freeing after usage. But
kunit_add_action_or_reset() itself may fail and free the memory. So, its
return value should be checked and abort the test for failure. Then, we
found that other usage of kunit_add_action_or_reset() in
resource_test_region_intersects() needs to be fixed too. We fix all these
user-after-free bugs in this patch.

Link: https://lkml.kernel.org/r/[email protected]
Fixes: 99185c10d5d9 ("resource, kunit: add test case for region_intersects()")
Signed-off-by: "Huang, Ying" <[email protected]>
Reported-by: Kees Bakker <[email protected]>
Closes: https://lore.kernel.org/lkml/[email protected]/
Cc: Dan Williams <[email protected]>
Cc: David Hildenbrand <[email protected]>
Cc: Bjorn Helgaas <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

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resource, kunit: add test case for region_intersects()

Patch series "resource: Fix region_intersects() vs
add_memory_driver_managed()", v3.

The patchset fixes a bug of region_intersects() for syste

resource, kunit: add test case for region_intersects()

Patch series "resource: Fix region_intersects() vs
add_memory_driver_managed()", v3.

The patchset fixes a bug of region_intersects() for systems with CXL
memory. The details of the bug can be found in [1/3]. To avoid similar
bugs in the future. A kunit test case for region_intersects() is added in
[3/3]. [2/3] is a preparation patch for [3/3].


This patch (of 3):

region_intersects() is important because it's used for /dev/mem permission
checking. To avoid possible bug of region_intersects() in the future, a
kunit test case for region_intersects() is added.

Link: https://lkml.kernel.org/r/[email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: "Huang, Ying" <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: David Hildenbrand <[email protected]>
Cc: Davidlohr Bueso <[email protected]>
Cc: Jonathan Cameron <[email protected]>
Cc: Dave Jiang <[email protected]>
Cc: Alison Schofield <[email protected]>
Cc: Vishal Verma <[email protected]>
Cc: Ira Weiny <[email protected]>
Cc: Alistair Popple <[email protected]>
Cc: Andy Shevchenko <[email protected]>
Cc: Bjorn Helgaas <[email protected]>
Cc: Baoquan He <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

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resource: add missing MODULE_DESCRIPTION()

Fix the 'make W=1' warning:
WARNING: modpost: missing MODULE_DESCRIPTION() in kernel/resource_kunit.o

Link: https://lkml.kernel.org/r/20240529-md-kernel-r

resource: add missing MODULE_DESCRIPTION()

Fix the 'make W=1' warning:
WARNING: modpost: missing MODULE_DESCRIPTION() in kernel/resource_kunit.o

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Jeff Johnson <[email protected]>
Cc: Andy Shevchenko <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Rafael J. Wysocki <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

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resource: provide meaningful MODULE_LICENSE() in test suite

modpost complains that module has no licence provided.
Provide it via meaningful MODULE_LICENSE().

Reported-by: Stephen Rothwell <sfr@can

resource: provide meaningful MODULE_LICENSE() in test suite

modpost complains that module has no licence provided.
Provide it via meaningful MODULE_LICENSE().

Reported-by: Stephen Rothwell <[email protected]>
Signed-off-by: Andy Shevchenko <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>

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resource: Add test cases for new resource API

Add test cases for newly added resource APIs.

Signed-off-by: Andy Shevchenko <[email protected]>
Signed-off-by: Rafael J. Wysocki <rafa

resource: Add test cases for new resource API

Add test cases for newly added resource APIs.

Signed-off-by: Andy Shevchenko <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>

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