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drm/i915: check for return value

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We were not checking the return value of drm_encoder_init() which can
fail. And if it fails then we will be working with an uninitialized
encoder.

Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1444312681-10149-2-git-send-email-sudipm.mukherjee@gmail.com
This commit is contained in:
Sudip Mukherjee 2015-10-08 19:28:00 +05:30 committed by Daniel Vetter
parent 506a8e87d8
commit 893da0c9bc
1 changed files with 4 additions and 2 deletions
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6
drivers/gpu/drm/i915/intel_dp.c
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@ -5987,8 +5987,9 @@ intel_dp_init(struct drm_device *dev,
intel_encoder = &intel_dig_port->base;
encoder = &intel_encoder->base;
drm_encoder_init(dev, &intel_encoder->base, &intel_dp_enc_funcs,
DRM_MODE_ENCODER_TMDS);
if (drm_encoder_init(dev, &intel_encoder->base, &intel_dp_enc_funcs,
DRM_MODE_ENCODER_TMDS))
goto err_encoder_init;
intel_encoder->compute_config = intel_dp_compute_config;
intel_encoder->disable = intel_disable_dp;
@ -6037,6 +6038,7 @@ intel_dp_init(struct drm_device *dev,
err_init_connector:
drm_encoder_cleanup(encoder);
err_encoder_init:
kfree(intel_connector);
err_connector_alloc:
kfree(intel_dig_port);