Commit fe3cb823 authored by David Fries's avatar David Fries Committed by Linus Torvalds
Browse files

W1: w1_family, remove unused variable need_exit



Removed the w1_family structure member variable need_exit.  It was only
being set and never used.  Even if it were to be used it is a polling type
operation.
Signed-off-by: default avatarDavid Fries <david@fries.net>
Signed-off-by: default avatarEvgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 347ba8a5
......@@ -48,7 +48,6 @@ int w1_register_family(struct w1_family *newf)
if (!ret) {
atomic_set(&newf->refcnt, 0);
newf->need_exit = 0;
list_add_tail(&newf->family_entry, &w1_families);
}
spin_unlock(&w1_flock);
......@@ -73,9 +72,6 @@ void w1_unregister_family(struct w1_family *fent)
break;
}
}
fent->need_exit = 1;
spin_unlock(&w1_flock);
/* deatch devices using this family code */
......@@ -113,8 +109,7 @@ struct w1_family * w1_family_registered(u8 fid)
static void __w1_family_put(struct w1_family *f)
{
if (atomic_dec_and_test(&f->refcnt))
f->need_exit = 1;
atomic_dec(&f->refcnt);
}
void w1_family_put(struct w1_family *f)
......
......@@ -53,7 +53,6 @@ struct w1_family
struct w1_family_ops *fops;
atomic_t refcnt;
u8 need_exit;
};
extern spinlock_t w1_flock;
......
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