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i915: correctly handling failed allocation

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Since devm_kzalloc can be failed, it needs to be checked
if not, NULL dereference could be happened.

Signed-off-by: Insu Yun <wuninsu@gmail.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1451491169-35068-1-git-send-email-wuninsu@gmail.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Insu Yun 2015-12-30 10:59:29 -05:00 committed by Jani Nikula
parent eba51190f3
commit 62ab420f74
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
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@ -666,6 +666,8 @@ struct drm_panel *vbt_panel_init(struct intel_dsi *intel_dsi, u16 panel_id)
/* This is cheating a bit with the cleanup. */
vbt_panel = devm_kzalloc(dev->dev, sizeof(*vbt_panel), GFP_KERNEL);
if (!vbt_panel)
return NULL;
vbt_panel->intel_dsi = intel_dsi;
drm_panel_init(&vbt_panel->panel);