dmaengine: mic_x100_dma: Use PTR_ERR_OR_ZERO()

Fix ptr_ret.cocci warnings:
drivers/dma/mic_x100_dma.c:483:1-3: WARNING: PTR_ERR_OR_ZERO can be used

Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR

Generated by: scripts/coccinelle/api/ptr_ret.cocci

Signed-off-by: Vasyl Gomonovych <gomonovych@gmail.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

diff --git a/drivers/dma/mic_x100_dma.c b/drivers/dma/mic_x100_dma.c
index 5ba5714d0b7c9787e87282d0b71f5f7dd06dca42..94d7bd7d2880164de11957e105a5f04a1cc8b102 100644 (file)
--- a/drivers/dma/mic_x100_dma.c
+++ b/drivers/dma/mic_x100_dma.c
@@ -480,9 +480,7 @@ static int mic_dma_setup_irq(struct mic_dma_chan *ch)
                to_mbus_hw_ops(ch)->request_threaded_irq(to_mbus_device(ch),
                        mic_dma_intr_handler, mic_dma_thread_fn,
                        "mic dma_channel", ch, ch->ch_num);
-       if (IS_ERR(ch->cookie))
-               return PTR_ERR(ch->cookie);
-       return 0;
+       return PTR_ERR_OR_ZERO(ch->cookie);
 }
 
 static inline void mic_dma_free_irq(struct mic_dma_chan *ch)