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ACPICA: Fix parameter validation for acpi_read/write

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Now return AE_BAD_PARAMETER if the input register pointer is
null, and AE_BAD_ADDRESS if the register has an address of zero.
Previously, these cases simply returned AE_OK. For optional
registers such as PM1B status/enable/control, the caller should
check for a valid register address before calling.  ACPICA BZ 748.

http://www.acpica.org/bugzilla/show_bug.cgi?id=748

Signed-off-by: Bob Moore <[email protected]>
Signed-off-by: Lin Ming <[email protected]>
Signed-off-by: Len Brown <[email protected]>
This commit is contained in:
Bob Moore 2009-02-18 14:28:02 +08:00 • committed by Len Brown
commit ac0c845026
2 changed files with 12 additions and 12 deletions
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6
include/acpi/acexcep.h
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@ -103,8 +103,9 @@
#define AE_BAD_OCTAL_CONSTANT (acpi_status) (0x0006 | AE_CODE_PROGRAMMER)
#define AE_BAD_DECIMAL_CONSTANT (acpi_status) (0x0007 | AE_CODE_PROGRAMMER)
#define AE_MISSING_ARGUMENTS (acpi_status) (0x0008 | AE_CODE_PROGRAMMER)
#define AE_BAD_ADDRESS (acpi_status) (0x0009 | AE_CODE_PROGRAMMER)
#define AE_CODE_PGM_MAX 0x0008
#define AE_CODE_PGM_MAX 0x0009
/*
* Acpi table exceptions
@ -224,7 +225,8 @@ char const *acpi_gbl_exception_names_pgm[] = {
"AE_BAD_HEX_CONSTANT",
"AE_BAD_OCTAL_CONSTANT",
"AE_BAD_DECIMAL_CONSTANT",
"AE_MISSING_ARGUMENTS"
"AE_MISSING_ARGUMENTS",
"AE_BAD_ADDRESS"
};
char const *acpi_gbl_exception_names_tbl[] = {