[patch] dma/mic_x100_dma: IS_ERR() vs PTR_ERR() typo

[Dan Carpenter]

This is harmless because the caller only cares about zero vs non-zero
but we should be returning PTR_ERR() here.

Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

diff --git a/drivers/dma/mic_x100_dma.c b/drivers/dma/mic_x100_dma.c
index 068e920..1502b24 100644
--- a/drivers/dma/mic_x100_dma.c
+++ b/drivers/dma/mic_x100_dma.c
@@ -483,7 +483,7 @@ static int mic_dma_setup_irq(struct mic_dma_chan *ch)
 			mic_dma_intr_handler, mic_dma_thread_fn,
 			"mic dma_channel", ch, ch->ch_num);
 	if (IS_ERR(ch->cookie))
-		return IS_ERR(ch->cookie);
+		return PTR_ERR(ch->cookie);
 	return 0;
 }