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Message-Id: <1401795584-22664-16-git-send-email-luis.henriques@canonical.com> Date: Tue, 3 Jun 2014 12:37:41 +0100 From: Luis Henriques <luis.henriques@...onical.com> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org, kernel-team@...ts.ubuntu.com Cc: Maarten Lankhorst <maarten.lankhorst@...onical.com>, Ben Skeggs <bskeggs@...hat.com>, Luis Henriques <luis.henriques@...onical.com> Subject: [PATCH 3.11 015/138] drm/nouveau: fix another lock unbalance in nouveau_crtc_page_flip 3.11.10.11 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Maarten Lankhorst <maarten.lankhorst@...onical.com> commit 806cbc5026933a781b66adecf6d1658fde9138e6 upstream. Fixes a regression introduced by 060810d7abaabca "drm/nouveau: fix locking issues in page flipping paths". chan->cli->mutex is unlocked a second time in the fail_unreserve path, fix this by moving mutex_unlock down. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@...onical.com> Signed-off-by: Ben Skeggs <bskeggs@...hat.com> Signed-off-by: Luis Henriques <luis.henriques@...onical.com> --- drivers/gpu/drm/nouveau/nouveau_display.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index a03e75deacaf..00d547eaf579 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -583,9 +583,9 @@ nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb, } ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence); - mutex_unlock(&chan->cli->mutex); if (ret) goto fail_unreserve; + mutex_unlock(&chan->cli->mutex); /* Update the crtc struct and cleanup */ crtc->fb = fb; -- 1.9.1 -- 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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