[PATCH] drm/i915: Fix memory leak in intel_dsi_init() error path

From: Christoph Jaeger
Date: Fri Jun 13 2014 - 15:57:43 EST


intel_dsi_init() bails out without freeing the memory 'intel_dsi' and
'intel_connector' point to. Simply bail out before allocating memory.

Picked up by Coverity - CID 1222750.

Signed-off-by: Christoph Jaeger <christophjaeger@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_dsi.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
index 02f99d7..6965627 100644
--- a/drivers/gpu/drm/i915/intel_dsi.c
+++ b/drivers/gpu/drm/i915/intel_dsi.c
@@ -675,6 +675,13 @@ bool intel_dsi_init(struct drm_device *dev)
if (!dev_priv->vbt.has_mipi)
return false;

+ if (IS_VALLEYVIEW(dev)) {
+ dev_priv->mipi_mmio_base = VLV_MIPI_BASE;
+ } else {
+ DRM_ERROR("Unsupported Mipi device to reg base");
+ return false;
+ }
+
intel_dsi = kzalloc(sizeof(*intel_dsi), GFP_KERNEL);
if (!intel_dsi)
return false;
@@ -689,13 +696,6 @@ bool intel_dsi_init(struct drm_device *dev)
encoder = &intel_encoder->base;
intel_dsi->attached_connector = intel_connector;

- if (IS_VALLEYVIEW(dev)) {
- dev_priv->mipi_mmio_base = VLV_MIPI_BASE;
- } else {
- DRM_ERROR("Unsupported Mipi device to reg base");
- return false;
- }
-
connector = &intel_connector->base;

drm_encoder_init(dev, encoder, &intel_dsi_funcs, DRM_MODE_ENCODER_DSI);
--
1.9.3

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