atm: solos-pci: Fix set-but-unused variable.

This is just a readback to entire completion of a register
write, keep the readback but kill the unused variable.

Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/atm/solos-pci.c

@@ -527,7 +527,6 @@ static int flash_upgrade(struct solos_card *card, int chip)
 {
 	const struct firmware *fw;
 	const char *fw_name;
-	uint32_t data32 = 0;
 	int blocksize = 0;
 	int numblocks = 0;
 	int offset;
@@ -576,7 +575,7 @@ static int flash_upgrade(struct solos_card *card, int chip)
 	
 	dev_info(&card->dev->dev, "Changing FPGA to Update mode\n");
 	iowrite32(1, card->config_regs + FPGA_MODE);
-	data32 = ioread32(card->config_regs + FPGA_MODE); 
+	(void) ioread32(card->config_regs + FPGA_MODE); 
 
 	/* Set mode to Chip Erase */
 	if(chip == 0 || chip == 2)