diff options
| author | Lin Ming <ming.m.lin@intel.com> | 2008-09-27 02:38:07 (GMT) |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2008-10-23 03:14:44 (GMT) |
| commit | 93851b4d13de48753eaae76ed190eef7355e2c19 (patch) | |
| tree | b320e20b7871f8024e992c6d130aa88106077528 /drivers/acpi | |
| parent | b68bacf225e5e9758472e99505d76125ced3ea88 (diff) | |
| download | linux-fsl-qoriq-93851b4d13de48753eaae76ed190eef7355e2c19.tar.xz | |
ACPICA: Reduce error to warning for incorrect method arg count
Previously aborted with error if too few arguments were passed to
a control method via the external ACPICA interface. Now issue a
warning instead and continue. Handles the case where the method
inadvertently declares too many arguments, but does not actually
use the extra ones. Applies mainly to the predefined methods.
http://bugzilla.kernel.org/show_bug.cgi?id=11032
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/namespace/nseval.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/drivers/acpi/namespace/nseval.c b/drivers/acpi/namespace/nseval.c index 0a1ae67..42dae12 100644 --- a/drivers/acpi/namespace/nseval.c +++ b/drivers/acpi/namespace/nseval.c @@ -148,21 +148,22 @@ acpi_status acpi_ns_evaluate(struct acpi_evaluate_info * info) info->param_count++; } - /* Error if too few arguments were passed in */ + /* + * Warning if too few or too many arguments have been passed by the + * caller. We don't want to abort here with an error because an + * incorrect number of arguments may not cause the method to fail. + * However, the method will fail if there are too few arguments passed + * and the method attempts to use one of the missing ones. + */ if (info->param_count < info->obj_desc->method.param_count) { - ACPI_ERROR((AE_INFO, + ACPI_WARNING((AE_INFO, "Insufficient arguments - " "method [%4.4s] needs %d, found %d", acpi_ut_get_node_name(info->resolved_node), info->obj_desc->method.param_count, info->param_count)); - return_ACPI_STATUS(AE_MISSING_ARGUMENTS); - } - - /* Just a warning if too many arguments */ - - else if (info->param_count > + } else if (info->param_count > info->obj_desc->method.param_count) { ACPI_WARNING((AE_INFO, "Excess arguments - " |