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From: Dan Carpenter <dan.carpenter@oracle.com>
To: Daniel Vetter <daniel.vetter@intel.com>,
	Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>,
	David Airlie <airlied@linux.ie>,
	intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
	kernel-janitors@vger.kernel.org
Subject: [PATCH] drm/i915: uninitialized value on error path
Date: Thu, 13 Apr 2017 19:53:11 +0000	[thread overview]
Message-ID: <20170413195311.GB26108@mwanda> (raw)

"ret" isn't initialized on this error path.  It doesn't really cause
any problems unless it's randomly set to -EDEADLK which is not likely.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 48a546210d8b..d0e9578952d5 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -9563,6 +9563,7 @@ int intel_get_load_detect_pipe(struct drm_connector *connector,
 	 */
 	if (!crtc) {
 		DRM_DEBUG_KMS("no pipe available for load-detect\n");
+		ret = -ENODEV;
 		goto fail;
 	}
 

WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com>
To: Daniel Vetter <daniel.vetter@intel.com>,
	Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>,
	David Airlie <airlied@linux.ie>,
	intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
	kernel-janitors@vger.kernel.org
Subject: [PATCH] drm/i915: uninitialized value on error path
Date: Thu, 13 Apr 2017 22:53:11 +0300	[thread overview]
Message-ID: <20170413195311.GB26108@mwanda> (raw)

"ret" isn't initialized on this error path.  It doesn't really cause
any problems unless it's randomly set to -EDEADLK which is not likely.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 48a546210d8b..d0e9578952d5 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -9563,6 +9563,7 @@ int intel_get_load_detect_pipe(struct drm_connector *connector,
 	 */
 	if (!crtc) {
 		DRM_DEBUG_KMS("no pipe available for load-detect\n");
+		ret = -ENODEV;
 		goto fail;
 	}
 

             reply	other threads:[~2017-04-13 19:53 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-13 19:53 Dan Carpenter [this message]
2017-04-13 19:53 ` [PATCH] drm/i915: uninitialized value on error path Dan Carpenter
2017-04-13 20:29 ` Chris Wilson
2017-04-13 20:29   ` Chris Wilson
2017-04-13 21:13   ` Dan Carpenter
2017-04-13 21:13     ` Dan Carpenter
2017-04-14 19:54   ` [PATCH v2] drm/i915: set "ret" correctly on error paths Dan Carpenter
2017-04-14 19:54     ` Dan Carpenter
2017-04-15  9:32     ` Chris Wilson
2017-04-15  9:32       ` Chris Wilson
2017-04-13 20:44 ` ✓ Fi.CI.BAT: success for drm/i915: uninitialized value on error path Patchwork
2017-04-14 20:13 ` ✓ Fi.CI.BAT: success for drm/i915: uninitialized value on error path (rev3) Patchwork
2017-04-17 10:53   ` Dan Carpenter
2017-04-18  7:58     ` Jani Nikula
2017-04-18  9:14       ` Dan Carpenter
2017-04-18  9:38         ` Jani Nikula
2017-04-18 10:35         ` Martin Peres

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