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Message-ID: <6b9ddc30-6148-428d-b581-fe49158c2cab@email.android.com>
Date: Sat, 18 Jan 2014 11:36:09 -0500
From: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
To: Yijing Wang <wangyijing@...wei.com>,
"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>
CC: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Daniel Vetter <daniel.vetter@...ll.ch>,
intel-gfx@...ts.freedesktop.org, Hanjun Guo <guohanjun@...wei.com>,
linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
dri-devel@...ts.freedesktop.org, linux-pci@...r.kernel.org,
Bjorn Helgaas <bhelgaas@...gle.com>,
Dave Airlie <airlied@...hat.com>
Subject: Re: [PATCH v2] ACPI: Fix acpi_evaluate_object() return value check
Yijing Wang <wangyijing@...wei.com> wrote:
>Fix acpi_evaluate_object() return value check,
>shoud acpi_status not int.
Should be?
Your mailer also ate the word 'to' .
>
>Signed-off-by: Yijing Wang <wangyijing@...wei.com>
>---
>
>v1->v2: Add CC to the related subsystem MAINTAINERS.
>
>---
> drivers/gpu/drm/i915/intel_acpi.c | 13 +++++++------
> drivers/gpu/drm/nouveau/core/subdev/mxm/base.c | 6 +++---
> drivers/gpu/drm/nouveau/nouveau_acpi.c | 13 +++++++------
> drivers/pci/pci-label.c | 6 +++---
> 4 files changed, 20 insertions(+), 18 deletions(-)
>
>diff --git a/drivers/gpu/drm/i915/intel_acpi.c
>b/drivers/gpu/drm/i915/intel_acpi.c
>index dfff090..7ea00e5 100644
>--- a/drivers/gpu/drm/i915/intel_acpi.c
>+++ b/drivers/gpu/drm/i915/intel_acpi.c
>@@ -35,7 +35,7 @@ static int intel_dsm(acpi_handle handle, int func)
> union acpi_object params[4];
> union acpi_object *obj;
> u32 result;
>- int ret = 0;
>+ acpi_status status;
>
> input.count = 4;
> input.pointer = params;
>@@ -50,8 +50,8 @@ static int intel_dsm(acpi_handle handle, int func)
> params[3].package.count = 0;
> params[3].package.elements = NULL;
>
>- ret = acpi_evaluate_object(handle, "_DSM", &input, &output);
>- if (ret) {
>+ status = acpi_evaluate_object(handle, "_DSM", &input, &output);
>+ if (ACPI_FAILURE(status)) {
> DRM_DEBUG_DRIVER("failed to evaluate _DSM: %d\n", ret);
> return ret;
> }
>@@ -141,7 +141,8 @@ static void intel_dsm_platform_mux_info(void)
> struct acpi_object_list input;
> union acpi_object params[4];
> union acpi_object *pkg;
>- int i, ret;
>+ acpi_status status;
>+ int i;
>
> input.count = 4;
> input.pointer = params;
>@@ -156,9 +157,9 @@ static void intel_dsm_platform_mux_info(void)
> params[3].package.count = 0;
> params[3].package.elements = NULL;
>
>- ret = acpi_evaluate_object(intel_dsm_priv.dhandle, "_DSM", &input,
>+ acpi_status = acpi_evaluate_object(intel_dsm_priv.dhandle, "_DSM",
>&input,
> &output);
>- if (ret) {
>+ if (ACPI_FAILURE(status)) {
> DRM_DEBUG_DRIVER("failed to evaluate _DSM: %d\n", ret);
> goto out;
> }
>diff --git a/drivers/gpu/drm/nouveau/core/subdev/mxm/base.c
>b/drivers/gpu/drm/nouveau/core/subdev/mxm/base.c
>index 1291204..3920943 100644
>--- a/drivers/gpu/drm/nouveau/core/subdev/mxm/base.c
>+++ b/drivers/gpu/drm/nouveau/core/subdev/mxm/base.c
>@@ -114,14 +114,14 @@ mxm_shadow_dsm(struct nouveau_mxm *mxm, u8
>version)
> struct acpi_buffer retn = { ACPI_ALLOCATE_BUFFER, NULL };
> union acpi_object *obj;
> acpi_handle handle;
>- int ret;
>+ acpi_status status;
>
> handle = ACPI_HANDLE(&device->pdev->dev);
> if (!handle)
> return false;
>
>- ret = acpi_evaluate_object(handle, "_DSM", &list, &retn);
>- if (ret) {
>+ status = acpi_evaluate_object(handle, "_DSM", &list, &retn);
>+ if (ACPI_FAILURE(status)) {
> nv_debug(mxm, "DSM MXMS failed: %d\n", ret);
> return false;
> }
>diff --git a/drivers/gpu/drm/nouveau/nouveau_acpi.c
>b/drivers/gpu/drm/nouveau/nouveau_acpi.c
>index ba0183f..6f810f2 100644
>--- a/drivers/gpu/drm/nouveau/nouveau_acpi.c
>+++ b/drivers/gpu/drm/nouveau/nouveau_acpi.c
>@@ -82,7 +82,8 @@ static int nouveau_optimus_dsm(acpi_handle handle,
>int func, int arg, uint32_t *
> struct acpi_object_list input;
> union acpi_object params[4];
> union acpi_object *obj;
>- int i, err;
>+ acpi_status status;
>+ int i;
> char args_buff[4];
>
> input.count = 4;
>@@ -101,8 +102,8 @@ static int nouveau_optimus_dsm(acpi_handle handle,
>int func, int arg, uint32_t *
> args_buff[i] = (arg >> i * 8) & 0xFF;
> params[3].buffer.pointer = args_buff;
>
>- err = acpi_evaluate_object(handle, "_DSM", &input, &output);
>- if (err) {
>+ status = acpi_evaluate_object(handle, "_DSM", &input, &output);
>+ if (ACPI_FAILURE(status)) {
> printk(KERN_INFO "failed to evaluate _DSM: %d\n", err);
> return err;
> }
>@@ -134,7 +135,7 @@ static int nouveau_dsm(acpi_handle handle, int
>func, int arg, uint32_t *result)
> struct acpi_object_list input;
> union acpi_object params[4];
> union acpi_object *obj;
>- int err;
>+ acpi_status status;
>
> input.count = 4;
> input.pointer = params;
>@@ -148,8 +149,8 @@ static int nouveau_dsm(acpi_handle handle, int
>func, int arg, uint32_t *result)
> params[3].type = ACPI_TYPE_INTEGER;
> params[3].integer.value = arg;
>
>- err = acpi_evaluate_object(handle, "_DSM", &input, &output);
>- if (err) {
>+ status = acpi_evaluate_object(handle, "_DSM", &input, &output);
>+ if (ACPI_FAILURE(status)) {
> printk(KERN_INFO "failed to evaluate _DSM: %d\n", err);
> return err;
> }
>diff --git a/drivers/pci/pci-label.c b/drivers/pci/pci-label.c
>index d51f45a..3c21f1b 100644
>--- a/drivers/pci/pci-label.c
>+++ b/drivers/pci/pci-label.c
>@@ -213,7 +213,7 @@ dsm_get_label(acpi_handle handle, int func,
> union acpi_object *obj;
> int len = 0;
>
>- int err;
>+ acpi_status status;
>
> input.count = 4;
> input.pointer = params;
>@@ -228,8 +228,8 @@ dsm_get_label(acpi_handle handle, int func,
> params[3].package.count = 0;
> params[3].package.elements = NULL;
>
>- err = acpi_evaluate_object(handle, "_DSM", &input, output);
>- if (err)
>+ status = acpi_evaluate_object(handle, "_DSM", &input, output);
>+ if (ACPI_FAILURE(status))
> return -1;
>
> obj = (union acpi_object *)output->pointer;
--
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