USB: storage: ene_ub6250: fix compile warnings

Fix the following compile warning:

| drivers/usb/storage/ene_ub6250.c: In function ‘ms_scsi_write’:
| drivers/usb/storage/ene_ub6250.c:1728:6: warning: ‘result’ may \
| be used uninitialized in this function [-Wuninitialized]
| drivers/usb/storage/ene_ub6250.c:1795:77: warning: ‘offset’ may \
| be used uninitialized in this function [-Wuninitialized]

Signed-off-by: Felipe Balbi <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/usb/storage/ene_ub6250.c

···
 		result = ene_send_scsi_cmd(us, FDIR_WRITE, scsi_sglist(srb), 1);
 	} else {
 		void *buf;
-		int offset;
+		int offset = 0;
 		u16 PhyBlockAddr;
 		u8 PageNum;
-		u32 result;
 		u16 len, oldphy, newphy;
 
 		buf = kmalloc(blenByte, GFP_KERNEL);