parport: "dev->timeslice" is an unsigned long, not an int

While auditing proc_doulongvec_ms_jiffies_minmax() usage in kernel, I found
a bug in drivers/parport/procfs.c, incorrectly using sizeof(int) instead of
sizeof(unsigned long)

Only 64bit arches are affected by this old bug.

Signed-off-by: Eric Dumazet <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/parport/procfs.c

···
 		{
 			.procname 	= "timeslice",
 			.data		= NULL,
-			.maxlen		= sizeof(int),
+			.maxlen		= sizeof(unsigned long),
 			.mode		= 0644,
 			.proc_handler	= &proc_doulongvec_ms_jiffies_minmax,
 			.extra1		= (void*) &parport_min_timeslice_value,