From patchwork Sun Sep 22 07:49:00 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Qiang Yu X-Patchwork-Id: 58884 Received: from vger.kernel.org ([209.132.180.67]) by www.linuxtv.org with esmtp (Exim 4.84_2) (envelope-from ) id 1iBwcy-0008HS-5Z; Sun, 22 Sep 2019 07:49:52 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727789AbfIVHtu (ORCPT + 1 other); Sun, 22 Sep 2019 03:49:50 -0400 Received: from mail-pf1-f195.google.com ([209.85.210.195]:33773 "EHLO mail-pf1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727785AbfIVHtu (ORCPT ); Sun, 22 Sep 2019 03:49:50 -0400 Received: by mail-pf1-f195.google.com with SMTP id q10so7151458pfl.0 for ; Sun, 22 Sep 2019 00:49:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=/P04TVQeG2TqtKqnh5NeUjgcAZkp2eeIEEO+pcLFimI=; b=M/xx3S0fObzJAC7Q0yLbKqcZqa5MoT9YYx9XUcR4V8ItKFBQYE/QwdqzrWkmKANvGN MYuC9n+WDjYmQIm1JImn4++yj8Nv/FD2I2Atm4bEw2L//p4BP0BpQ3Z4PEnPc8wdWjCi SR8sH/6I6+5o+r/u6MOnsKtg1ZDUEUBX8HyJpspkTtzOgGSXFCqPgWU60BrMRpv5185L wKDtpTgqYgr3MJU3/3M2EIDNSvivtVl7CJOxESGXrBB2xDua2+wbM2fFC8YLYVflWWbV SqsQwDPN1muzH+wMK7WSP0UiVhamJaM6a82sSoFobxf9cjeuaZtsT7HdkC2gA3JtVsqp 1J3g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=/P04TVQeG2TqtKqnh5NeUjgcAZkp2eeIEEO+pcLFimI=; b=bIABmlmKL9DaHr07bc+Dc4MSjbM74WfMhgnk8AbNtr8V9+fyxlgYIaFp2+4AuETAiz ArClyhpTtZ4IGpOujxbjCq3NH5B3Adat5Gi/NA250pH3DDRb8cANLHLub8EvUIeUxc0G JK7x/9+SodEGkLPveQLiG+ADogZyGS/BrKjXL6a03Z42TyQ4VVINdxlPX2fzgCfYBzve nkiK9NV4VYf++OVzA8L60nUY+p5urzA1mfkeHO/zAouQhtUD+vJ1ttOp4MLFxtkmf673 ZAGG/wQGop92XZiaNSvxUYNl8uTHaVAPSdjYsJp3SXAbHcgD9LgoPKAgPSWF+QZPKSOJ yqYw== X-Gm-Message-State: APjAAAW0CQ9owB7+sbTIkGv6gCMluVkREMfmvjDnsq1rQbklBN5f+eSK zP2Mor7u7FOqypygbpunrCA= X-Google-Smtp-Source: APXvYqx9WFfqi0tOd1jiZXhwnRWHa9sevld2/rp0T8BsVLUgUcSnQPf8YghWXMs7gYxMmchxrZtI6w== X-Received: by 2002:a63:790b:: with SMTP id u11mr7725989pgc.273.1569138588365; Sun, 22 Sep 2019 00:49:48 -0700 (PDT) Received: from yuq-Aspire-4738G.lan (ah.ptr230.ptrcloud.net. [153.122.161.8]) by smtp.gmail.com with ESMTPSA id f188sm6194234pfa.170.2019.09.22.00.49.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 22 Sep 2019 00:49:47 -0700 (PDT) From: Qiang Yu To: dri-devel@lists.freedesktop.org Cc: lima@lists.freedesktop.org, Sumit Semwal , linux-media@vger.kernel.org, linaro-mm-sig@lists.linaro.org, Qiang Yu , =?utf-8?q?Christian_K=C3=B6nig?= Subject: [PATCH] dma-buf/resv: fix exclusive fence get Date: Sun, 22 Sep 2019 15:49:00 +0800 Message-Id: <20190922074900.853-1-yuq825@gmail.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org This causes kernel crash when testing lima driver. Cc: Christian König Fixes: b8c036dfc66f ("dma-buf: simplify reservation_object_get_fences_rcu a bit") Signed-off-by: Qiang Yu Reviewed-by: Chris Wilson --- drivers/dma-buf/dma-resv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma-buf/dma-resv.c b/drivers/dma-buf/dma-resv.c index 42a8f3f11681..709002515550 100644 --- a/drivers/dma-buf/dma-resv.c +++ b/drivers/dma-buf/dma-resv.c @@ -471,7 +471,7 @@ int dma_resv_get_fences_rcu(struct dma_resv *obj, if (pfence_excl) *pfence_excl = fence_excl; else if (fence_excl) - shared[++shared_count] = fence_excl; + shared[shared_count++] = fence_excl; if (!shared_count) { kfree(shared);