linux-kernel - [PATCH 05/11 v3] drm/i915/intel_i2c: allocate gmbus array as part of drm_i915

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Date:	Mon, 26 Mar 2012 22:26:44 +0800
From:	Daniel Kurtz <djkurtz@...omium.org>
To:	Keith Packard <keithp@...thp.com>, David Airlie <airlied@...ux.ie>,
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
	Daniel Vetter <daniel@...ll.ch>,
	Chris Wilson <chris@...is-wilson.co.uk>
Cc:	Benson Leung <bleung@...omium.org>,
	Yufeng Shen <miletus@...omium.org>,
	Daniel Kurtz <djkurtz@...omium.org>
Subject: [PATCH 05/11 v3] drm/i915/intel_i2c: allocate gmbus array as part of drm_i915_private

This memory is always allocated, and it is always a fixed size, so just
allocate it along with the rest of the driver state.

Signed-off-by: Daniel Kurtz <djkurtz@...omium.org>
---
 drivers/gpu/drm/i915/i915_drv.h  |    2 +-
 drivers/gpu/drm/i915/intel_i2c.c |   10 ----------
 2 files changed, 1 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 312dd4e..b132677 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -326,7 +326,7 @@ typedef struct drm_i915_private {
 	/** gt_lock is also taken in irq contexts. */
 	struct spinlock gt_lock;
 
-	struct intel_gmbus *gmbus;
+	struct intel_gmbus gmbus[GMBUS_NUM_PORTS];
 
 	/** gmbus_mutex protects against concurrent usage of the single hw gmbus
 	 * controller on different i2c buses. */
diff --git a/drivers/gpu/drm/i915/intel_i2c.c b/drivers/gpu/drm/i915/intel_i2c.c
index 7396d7c..aa0670e 100644
--- a/drivers/gpu/drm/i915/intel_i2c.c
+++ b/drivers/gpu/drm/i915/intel_i2c.c
@@ -373,11 +373,6 @@ int intel_setup_gmbus(struct drm_device *dev)
 	else
 		dev_priv->gpio_mmio_base = 0;
 
-	dev_priv->gmbus = kcalloc(GMBUS_NUM_PORTS, sizeof(struct intel_gmbus),
-				  GFP_KERNEL);
-	if (dev_priv->gmbus == NULL)
-		return -ENOMEM;
-
 	mutex_init(&dev_priv->gmbus_mutex);
 
 	for (i = 0; i < GMBUS_NUM_PORTS; i++) {
@@ -414,8 +409,6 @@ err:
 		struct intel_gmbus *bus = &dev_priv->gmbus[i];
 		i2c_del_adapter(&bus->adapter);
 	}
-	kfree(dev_priv->gmbus);
-	dev_priv->gmbus = NULL;
 	return ret;
 }
 
@@ -445,7 +438,4 @@ void intel_teardown_gmbus(struct drm_device *dev)
 		struct intel_gmbus *bus = &dev_priv->gmbus[i];
 		i2c_del_adapter(&bus->adapter);
 	}
-
-	kfree(dev_priv->gmbus);
-	dev_priv->gmbus = NULL;
 }
-- 
1.7.7.3

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