From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andy Shevchenko Subject: [PATCH] of: dma: protect list write operation by spin_lock Date: Mon, 28 Jan 2013 17:24:54 +0200 Message-ID: <1359386694-20548-1-git-send-email-andriy.shevchenko@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: devicetree-discuss-bounces+gldd-devicetree-discuss=m.gmane.org-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org Sender: "devicetree-discuss" To: Grant Likely , Rob Herring , devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org, Arnd Bergmann Cc: Andy Shevchenko List-Id: devicetree@vger.kernel.org Signed-off-by: Andy Shevchenko --- drivers/of/dma.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/of/dma.c b/drivers/of/dma.c index 59631b2..1ae6120 100644 --- a/drivers/of/dma.c +++ b/drivers/of/dma.c @@ -117,7 +117,9 @@ int of_dma_controller_register(struct device_node *np, ofdma->use_count = 0; /* Now queue of_dma controller structure in list */ + spin_lock(&of_dma_lock); list_add_tail(&ofdma->of_dma_controllers, &of_dma_list); + spin_unlock(&of_dma_lock); return 0; } -- 1.7.10.4