From: Andrew Morton <akpm@linux-foundation.org>
Date: Sat, 25 Aug 2007 05:28:20 +0000 (-0400)
Subject: ACPI: add dump_stack() to trace acpi_format_exception programming errors
X-Git-Tag: v2.6.23-rc4~16^2~2^2~1
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3e0d69ecf04d25f1e9c4ad658683d6d92641bb08;p=linux-2.6

ACPI: add dump_stack() to trace acpi_format_exception programming errors

Dump the stack so we can find the secretive caller to acpi_format_exception().

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
---

diff --git a/drivers/acpi/utilities/utglobal.c b/drivers/acpi/utilities/utglobal.c
index 1621655d6e..93ea8290b4 100644
--- a/drivers/acpi/utilities/utglobal.c
+++ b/drivers/acpi/utilities/utglobal.c
@@ -126,6 +126,7 @@ const char *acpi_format_exception(acpi_status status)
 			    "Unknown exception code: 0x%8.8X", status));
 
 		exception = "UNKNOWN_STATUS_CODE";
+		dump_stack();
 	}
 
 	return (ACPI_CAST_PTR(const char, exception));