From 263f4a30e4f1dc5385650738c1dcf3728036ecc4 Mon Sep 17 00:00:00 2001 From: Henrique de Moraes Holschuh Date: Sun, 16 May 2010 19:45:45 -0300 Subject: [PATCH] thinkpad-acpi: acpi_evalf fixes Use acpi_format_exception() in acpi_evalf() instead of logging numeric errors. Also, when ACPICA returns an error, we should not be touching the return object, as it is invalid. In debug mode, acpi_evalf() callers would printk the returned crap (but fortunately, not use it). Signed-off-by: Henrique de Moraes Holschuh --- drivers/platform/x86/thinkpad_acpi.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 877a7802e830..da3a70b280f2 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -605,9 +605,10 @@ static int acpi_evalf(acpi_handle handle, switch (res_type) { case 'd': /* int */ - if (res) + success = (status == AE_OK && + out_obj.type == ACPI_TYPE_INTEGER); + if (success && res) *(int *)res = out_obj.integer.value; - success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER; break; case 'v': /* void */ success = status == AE_OK; @@ -620,8 +621,8 @@ static int acpi_evalf(acpi_handle handle, } if (!success && !quiet) - printk(TPACPI_ERR "acpi_evalf(%s, %s, ...) failed: %d\n", - method, fmt0, status); + printk(TPACPI_ERR "acpi_evalf(%s, %s, ...) failed: %s\n", + method, fmt0, acpi_format_exception(status)); return success; } -- 2.20.1