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Date: Sun, 16 Jun 2013 23:01:38 +0100 From: Ben Hutchings <ben@...adent.org.uk> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org CC: akpm@...ux-foundation.org, "Patrik Jakobsson" <patrik.r.jakobsson@...il.com>, "Daniel Vetter" <daniel.vetter@...ll.ch> Subject: [64/83] drm/gma500/psb: Unpin framebuffer on crtc disable 3.2.47-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: Patrik Jakobsson <patrik.r.jakobsson@...il.com> commit 820de86a90089ee607d7864538c98a23b503c846 upstream. 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 Poulsbo. Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=889511 Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=812113 Reviewed-by: Daniel Vetter <daniel.vetter@...ll.ch> Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@...il.com> [bwh: Backported to 3.2: adjust filename] Signed-off-by: Ben Hutchings <ben@...adent.org.uk> --- drivers/staging/gma500/psb_intel_display.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) --- a/drivers/staging/gma500/psb_intel_display.c +++ b/drivers/staging/gma500/psb_intel_display.c @@ -1255,6 +1255,19 @@ void psb_intel_crtc_destroy(struct drm_c kfree(psb_intel_crtc); } +static void psb_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 psb_intel_helper_funcs = { .dpms = psb_intel_crtc_dpms, .mode_fixup = psb_intel_crtc_mode_fixup, @@ -1262,6 +1275,7 @@ const struct drm_crtc_helper_funcs psb_i .mode_set_base = psb_intel_pipe_set_base, .prepare = psb_intel_crtc_prepare, .commit = psb_intel_crtc_commit, + .disable = psb_intel_crtc_disable, }; const struct drm_crtc_funcs psb_intel_crtc_funcs = { -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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