dmaengine: imx-sdma: remove useless braces

Braces {} are not necessary for single statement blocks.
Signed-off-by: Flavio Suligoi <f.suligoi@asem.it>
Link: https://lore.kernel.org/r/20210928151833.589843-1-f.suligoi@asem.itSigned-off-by: Vinod Koul <vkoul@kernel.org>

drivers/dma/imx-sdma.c

@@ -741,9 +741,8 @@ static int sdma_load_script(struct sdma_engine *sdma, void *buf, int size,
 	unsigned long flags;
 
 	buf_virt = dma_alloc_coherent(sdma->dev, size, &buf_phys, GFP_KERNEL);
-	if (!buf_virt) {
+	if (!buf_virt)
 		return -ENOMEM;
-	}
 
 	spin_lock_irqsave(&sdma->channel_0_lock, flags);