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drm/gma500/cdv: Unpin framebuffer on crtc disable

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The framebuffer needs to be unpinned in the crtc->disable callback
because of previous pinning in psb_intel_pipe_set_base(). This will fix
a memory leak where the framebuffer was released but not unpinned
properly. This patch only affects Cedarview.

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=889511
Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=812113
Cc: stable@vger.kernel.org
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
This commit is contained in:
Patrik Jakobsson 2013-06-08 20:23:08 +02:00
parent 820de86a90
commit 22e7c385a8
1 changed files with 14 additions and 0 deletions
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14
drivers/gpu/drm/gma500/cdv_intel_display.c
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@ -1750,6 +1750,19 @@ static void cdv_intel_crtc_destroy(struct drm_crtc *crtc)
kfree(psb_intel_crtc);
}
static void cdv_intel_crtc_disable(struct drm_crtc *crtc)
{
struct gtt_range *gt;
struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF);
if (crtc->fb) {
gt = to_psb_fb(crtc->fb)->gtt;
psb_gtt_unpin(gt);
}
}
const struct drm_crtc_helper_funcs cdv_intel_helper_funcs = {
.dpms = cdv_intel_crtc_dpms,
.mode_fixup = cdv_intel_crtc_mode_fixup,
@ -1757,6 +1770,7 @@ const struct drm_crtc_helper_funcs cdv_intel_helper_funcs = {
.mode_set_base = cdv_intel_pipe_set_base,
.prepare = cdv_intel_crtc_prepare,
.commit = cdv_intel_crtc_commit,
.disable = cdv_intel_crtc_disable,
};
const struct drm_crtc_funcs cdv_intel_crtc_funcs = {