CRIS v32: remove some double unlocks

We unlocked a few lines earlier so we can delete these unlocks.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jesper Nilsson <jespern@axis.com>

arch/cris/arch-v32/mach-a3/dma.c

@@ -41,7 +41,6 @@ int crisv32_request_dma(unsigned int dmanr, const char *device_id,
 
 		if (options & DMA_PANIC_ON_ERROR)
 			panic("request_dma error!");
-		spin_unlock_irqrestore(&dma_lock, flags);
 		return -EBUSY;
 	}
 	clk_ctrl = REG_RD(clkgen, regi_clkgen, rw_clk_ctrl);

arch/cris/arch-v32/mach-fs/dma.c

@@ -43,7 +43,6 @@ int crisv32_request_dma(unsigned int dmanr, const char *device_id,
 		}
 		if (options & DMA_PANIC_ON_ERROR)
 			panic("request_dma error!");
-		spin_unlock_irqrestore(&dma_lock, flags);
 		return -EBUSY;
 	}
 	clk_ctrl = REG_RD(config, regi_config, rw_clk_ctrl);