Fix warning differ in signedness in common/cmd_ide.c

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

common/cmd_ide.c

@@ -1136,9 +1136,9 @@ static void ide_ident (block_dev_desc_t *dev_desc)
 
 	input_swap_data (device, iobuf, ATA_SECTORWORDS);
 
-	ident_cpy (dev_desc->revision, iop->fw_rev, sizeof(dev_desc->revision));
-	ident_cpy (dev_desc->vendor, iop->model, sizeof(dev_desc->vendor));
-	ident_cpy (dev_desc->product, iop->serial_no, sizeof(dev_desc->product));
+	ident_cpy ((unsigned char*)dev_desc->revision, iop->fw_rev, sizeof(dev_desc->revision));
+	ident_cpy ((unsigned char*)dev_desc->vendor, iop->model, sizeof(dev_desc->vendor));
+	ident_cpy ((unsigned char*)dev_desc->product, iop->serial_no, sizeof(dev_desc->product));
 #ifdef __LITTLE_ENDIAN
 	/*
 	 * firmware revision and model number have Big Endian Byte
@@ -1953,9 +1953,9 @@ static void	atapi_inquiry(block_dev_desc_t * dev_desc)
 		return;
 
 	/* copy device ident strings */
-	ident_cpy(dev_desc->vendor,&iobuf[8],8);
-	ident_cpy(dev_desc->product,&iobuf[16],16);
-	ident_cpy(dev_desc->revision,&iobuf[32],5);
+	ident_cpy((unsigned char*)dev_desc->vendor,&iobuf[8],8);
+	ident_cpy((unsigned char*)dev_desc->product,&iobuf[16],16);
+	ident_cpy((unsigned char*)dev_desc->revision,&iobuf[32],5);
 
 	dev_desc->lun=0;
 	dev_desc->lba=0;