From: Lin Ming Date: Sat, 27 Sep 2008 02:38:07 +0000 (+0800) Subject: ACPICA: Reduce error to warning for incorrect method arg count X-Git-Tag: v2.6.28-rc1~26^2~26^2~14 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=93851b4d13de48753eaae76ed190eef7355e2c19;p=linux-2.6-omap-h63xx.git 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 Signed-off-by: Bob Moore Signed-off-by: Len Brown --- diff --git a/drivers/acpi/namespace/nseval.c b/drivers/acpi/namespace/nseval.c index 0a1ae670a84..42dae12f2ef 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 - "