Re: [Intel-gfx] [PATCH 5/9] drm/i915: Adjust seven checks for null pointers

2017-05-04 Thread Jani Nikula
On Thu, 04 May 2017, SF Markus Elfring  wrote:
> From: Markus Elfring 
> Date: Thu, 4 May 2017 13:52:19 +0200
> MIME-Version: 1.0
> Content-Type: text/plain; charset=UTF-8
> Content-Transfer-Encoding: 8bit
>
> The script “checkpatch.pl” pointed information out like the following.
>
> Comparison to NULL could be written …

Could be written one way or the other. We have and accept
both. Sometimes explicit comparison with NULL is preferred, depending on
judgement, not based on what a tool says.

BR,
Jani.


>
> Thus fix affected source code places.
>
> Signed-off-by: Markus Elfring 
> ---
>  drivers/gpu/drm/i915/i915_debugfs.c | 14 +++---
>  1 file changed, 7 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c 
> b/drivers/gpu/drm/i915/i915_debugfs.c
> index bf9a2e8d8c16..d9c699d7245e 100644
> --- a/drivers/gpu/drm/i915/i915_debugfs.c
> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> @@ -242,7 +242,7 @@ static int i915_gem_stolen_list_info(struct seq_file *m, 
> void *data)
>   if (count == total)
>   break;
>  
> - if (obj->stolen == NULL)
> + if (!obj->stolen)
>   continue;
>  
>   objects[count++] = obj;
> @@ -254,7 +254,7 @@ static int i915_gem_stolen_list_info(struct seq_file *m, 
> void *data)
>   if (count == total)
>   break;
>  
> - if (obj->stolen == NULL)
> + if (!obj->stolen)
>   continue;
>  
>   objects[count++] = obj;
> @@ -557,7 +557,7 @@ static int i915_gem_pageflip_info(struct seq_file *m, 
> void *data)
>  
>   spin_lock_irq(&dev->event_lock);
>   work = crtc->flip_work;
> - if (work == NULL) {
> + if (!work) {
>   seq_printf(m, "No flip due on pipe %c (plane %c)\n",
>  pipe, plane);
>   } else {
> @@ -3717,7 +3717,7 @@ static ssize_t 
> i915_displayport_test_active_write(struct file *file,
>   continue;
>  
>   if (connector->status == connector_status_connected &&
> - connector->encoder != NULL) {
> + connector->encoder) {
>   intel_dp = enc_to_intel_dp(connector->encoder);
>   status = kstrtoint(input_buffer, 10, &val);
>   if (status < 0)
> @@ -3756,7 +3756,7 @@ static int i915_displayport_test_active_show(struct 
> seq_file *m, void *data)
>   continue;
>  
>   if (connector->status == connector_status_connected &&
> - connector->encoder != NULL) {
> + connector->encoder) {
>   intel_dp = enc_to_intel_dp(connector->encoder);
>   seq_putc(m,
>intel_dp->compliance.test_active ? '1' : '0');
> @@ -3801,7 +3801,7 @@ static int i915_displayport_test_data_show(struct 
> seq_file *m, void *data)
>   continue;
>  
>   if (connector->status == connector_status_connected &&
> - connector->encoder != NULL) {
> + connector->encoder) {
>   intel_dp = enc_to_intel_dp(connector->encoder);
>   if (intel_dp->compliance.test_type ==
>   DP_TEST_LINK_EDID_READ)
> @@ -3855,7 +3855,7 @@ static int i915_displayport_test_type_show(struct 
> seq_file *m, void *data)
>   continue;
>  
>   if (connector->status == connector_status_connected &&
> - connector->encoder != NULL) {
> + connector->encoder) {
>   intel_dp = enc_to_intel_dp(connector->encoder);
>   seq_printf(m, "%02lx", intel_dp->compliance.test_type);
>   } else {

-- 
Jani Nikula, Intel Open Source Technology Center
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[Intel-gfx] [PATCH 5/9] drm/i915: Adjust seven checks for null pointers

2017-05-04 Thread SF Markus Elfring
From: Markus Elfring 
Date: Thu, 4 May 2017 13:52:19 +0200
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The script “checkpatch.pl” pointed information out like the following.

Comparison to NULL could be written …

Thus fix affected source code places.

Signed-off-by: Markus Elfring 
---
 drivers/gpu/drm/i915/i915_debugfs.c | 14 +++---
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c 
b/drivers/gpu/drm/i915/i915_debugfs.c
index bf9a2e8d8c16..d9c699d7245e 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -242,7 +242,7 @@ static int i915_gem_stolen_list_info(struct seq_file *m, 
void *data)
if (count == total)
break;
 
-   if (obj->stolen == NULL)
+   if (!obj->stolen)
continue;
 
objects[count++] = obj;
@@ -254,7 +254,7 @@ static int i915_gem_stolen_list_info(struct seq_file *m, 
void *data)
if (count == total)
break;
 
-   if (obj->stolen == NULL)
+   if (!obj->stolen)
continue;
 
objects[count++] = obj;
@@ -557,7 +557,7 @@ static int i915_gem_pageflip_info(struct seq_file *m, void 
*data)
 
spin_lock_irq(&dev->event_lock);
work = crtc->flip_work;
-   if (work == NULL) {
+   if (!work) {
seq_printf(m, "No flip due on pipe %c (plane %c)\n",
   pipe, plane);
} else {
@@ -3717,7 +3717,7 @@ static ssize_t i915_displayport_test_active_write(struct 
file *file,
continue;
 
if (connector->status == connector_status_connected &&
-   connector->encoder != NULL) {
+   connector->encoder) {
intel_dp = enc_to_intel_dp(connector->encoder);
status = kstrtoint(input_buffer, 10, &val);
if (status < 0)
@@ -3756,7 +3756,7 @@ static int i915_displayport_test_active_show(struct 
seq_file *m, void *data)
continue;
 
if (connector->status == connector_status_connected &&
-   connector->encoder != NULL) {
+   connector->encoder) {
intel_dp = enc_to_intel_dp(connector->encoder);
seq_putc(m,
 intel_dp->compliance.test_active ? '1' : '0');
@@ -3801,7 +3801,7 @@ static int i915_displayport_test_data_show(struct 
seq_file *m, void *data)
continue;
 
if (connector->status == connector_status_connected &&
-   connector->encoder != NULL) {
+   connector->encoder) {
intel_dp = enc_to_intel_dp(connector->encoder);
if (intel_dp->compliance.test_type ==
DP_TEST_LINK_EDID_READ)
@@ -3855,7 +3855,7 @@ static int i915_displayport_test_type_show(struct 
seq_file *m, void *data)
continue;
 
if (connector->status == connector_status_connected &&
-   connector->encoder != NULL) {
+   connector->encoder) {
intel_dp = enc_to_intel_dp(connector->encoder);
seq_printf(m, "%02lx", intel_dp->compliance.test_type);
} else {
-- 
2.12.2

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