[PATCH] IDE PIO mode Fix

I found this bug in 2.5.10 first. And caused ext2 FS corruption.
We are porting Linux to PC-9801 architecture (made by NEC Japan).
It has PIO ONLY IDE I/F. So please check PIO mode too.

It was introduced in 2.5.9 and still exists in 2.5.13, and caused
superblock corruption for Andries.  This fixes it.

drivers/ide/ide-taskfile.c

@@ -202,7 +202,7 @@ void ata_write(ide_drive_t *drive, void *buffer, unsigned int wcount)
 			ata_write_slow(drive, buffer, wcount);
 		else
 #endif
-			ata_write_16(drive, buffer, wcount<<1);
+			ata_write_16(drive, buffer, wcount);
 	}
 }