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| author | Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2018-11-29 12:55:59 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-17 11:28:53 +0300 |
| commit | 8e3f3c06be02aaf0b09f11eafc3e2f567bdbd6d2 (patch) | |
| tree | 77ca63f10682463f0500277d00dce1cd9b076df5 /fs | |
| parent | 9407fd14d0ee929ea21571055ccf4361b6e2323a (diff) | |
| download | linux-8e3f3c06be02aaf0b09f11eafc3e2f567bdbd6d2.tar.xz | |
ACPI/IORT: Fix iort_get_platform_device_domain() uninitialized pointer value
[ Upstream commit ea2412dc21cc790335d319181dddc43682aef164 ]
Running the Clang static analyzer on IORT code detected the following
error:
Logic error: Branch condition evaluates to a garbage value
in
iort_get_platform_device_domain()
If the named component associated with a given device has no IORT
mappings, iort_get_platform_device_domain() exits its MSI mapping loop
with msi_parent pointer containing garbage, which can lead to erroneous
code path execution.
Initialize the msi_parent pointer, fixing the bug.
Fixes: d4f54a186667 ("ACPI: platform: setup MSI domain for ACPI based
platform device")
Reported-by: Patrick Bellasi <patrick.bellasi@arm.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions