dmaengine: idma64: replace spin_lock_irqsave with spin_lock (7645d26f) · Commits · 戴 / test

idma64_chan_irq() is invoked in hardirq handle function, it is unnecessary to call spin_lock_irqsave. Signed-off-by:

drivers/dma/idma64.c

+2 −3

Original line number	Diff line number	Diff line
		@@ -142,9 +142,8 @@ static void idma64_chan_irq(struct idma64 *idma64, unsigned short c,
		{
		struct idma64_chan *idma64c = &idma64->chan[c];
		struct idma64_desc *desc;
		unsigned long flags;

		spin_lock_irqsave(&idma64c->vchan.lock, flags);
		spin_lock(&idma64c->vchan.lock);
		desc = idma64c->desc;
		if (desc) {
		if (status_err & (1 << c)) {
		@@ -161,7 +160,7 @@ static void idma64_chan_irq(struct idma64 *idma64, unsigned short c,
		if (idma64c->desc == NULL \|\| desc->status == DMA_ERROR)
		idma64_stop_transfer(idma64c);
		}
		spin_unlock_irqrestore(&idma64c->vchan.lock, flags);
		spin_unlock(&idma64c->vchan.lock);
		}

		static irqreturn_t idma64_irq(int irq, void *dev)