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acpi_table: Fix coverity defect in acpi_write_spcr
authorPatrick Rudolph <patrick.rudolph@9elements.com>
Mon, 28 Oct 2024 08:08:35 +0000 (09:08 +0100)
committerTom Rini <trini@konsulko.com>
Mon, 28 Oct 2024 22:50:26 +0000 (16:50 -0600)
commite1c3c720e780eed6647796d69dca6184640234a5
tree1378ae3213921b5c98244b089ac9526006ec4fa3tree | snapshot
parentf2533fb04893467cc64fd5e31158a8c861c0a883commit | diff
acpi_table: Fix coverity defect in acpi_write_spcr

Fix "Integer handling issues  (SIGN_EXTENSION)" in newly added code:
Cast serial_info.reg_offset to u64 to prevent an integer overflow when
shifted too many bits to the left. Currently this never happens as the
shift is supposed to be less than 4.

Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-by: Moritz Fischer <moritzf@google.com>
lib/acpi/acpi_table.c diff | blob | history
My U-Boot fork