parport_pc: make sure to release IO ports after probing for IT87XX

Commit f63fd7e ("parport_pc: detection
for SuperIO IT87XX POST") only released the IO port region on success,
not when the probe for the IT87XX chip failed.

That caused not only a reserved region to leak, but also caused an oops
when the driver module was unloaded and somebody tried to cat
/proc/ioports - because the string that was assigned to the IO port
region was a static string in the module virtual address area.

Reported-by: Lubos Lunak <[email protected]>
Cc: Jan Kara <[email protected]>
Cc: Petr Cvek <[email protected]>
Acked-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

drivers/parport/parport_pc.c

@@ -1568,9 +1568,8 @@ static void __devinit detect_and_report_it87(void)
 		outb(r | 8, 0x2F);
 		outb(0x02, 0x2E);	/* Lock */
 		outb(0x02, 0x2F);
-
-		release_region(0x2e, 1);
 	}
+	release_region(0x2e, 1);
 }
 #endif /* CONFIG_PARPORT_PC_SUPERIO */