guard(srcu)(&lh->gdev->srcu);
- if (!rcu_dereference(lh->gdev->chip))
+ if (!rcu_access_pointer(lh->gdev->chip))
return -ENODEV;
switch (cmd) {
guard(srcu)(&lr->gdev->srcu);
- if (!rcu_dereference(lr->gdev->chip))
+ if (!rcu_access_pointer(lr->gdev->chip))
return -ENODEV;
switch (cmd) {
guard(srcu)(&lr->gdev->srcu);
- if (!rcu_dereference(lr->gdev->chip))
+ if (!rcu_access_pointer(lr->gdev->chip))
return EPOLLHUP | EPOLLERR;
poll_wait(file, &lr->wait, wait);
guard(srcu)(&lr->gdev->srcu);
- if (!rcu_dereference(lr->gdev->chip))
+ if (!rcu_access_pointer(lr->gdev->chip))
return -ENODEV;
if (count < sizeof(le))
guard(srcu)(&le->gdev->srcu);
- if (!rcu_dereference(le->gdev->chip))
+ if (!rcu_access_pointer(le->gdev->chip))
return EPOLLHUP | EPOLLERR;
poll_wait(file, &le->wait, wait);
guard(srcu)(&le->gdev->srcu);
- if (!rcu_dereference(le->gdev->chip))
+ if (!rcu_access_pointer(le->gdev->chip))
return -ENODEV;
/*
guard(srcu)(&le->gdev->srcu);
- if (!rcu_dereference(le->gdev->chip))
+ if (!rcu_access_pointer(le->gdev->chip))
return -ENODEV;
/*
guard(srcu)(&gdev->srcu);
/* We fail any subsequent ioctl():s when the chip is gone */
- if (!rcu_dereference(gdev->chip))
+ if (!rcu_access_pointer(gdev->chip))
return -ENODEV;
/* Fill in the struct and pass to userspace */
guard(srcu)(&cdev->gdev->srcu);
- if (!rcu_dereference(cdev->gdev->chip))
+ if (!rcu_access_pointer(cdev->gdev->chip))
return EPOLLHUP | EPOLLERR;
poll_wait(file, &cdev->wait, pollt);
guard(srcu)(&cdev->gdev->srcu);
- if (!rcu_dereference(cdev->gdev->chip))
+ if (!rcu_access_pointer(cdev->gdev->chip))
return -ENODEV;
#ifndef CONFIG_GPIO_CDEV_V1
guard(srcu)(&gdev->srcu);
/* Fail on open if the backing gpiochip is gone */
- if (!rcu_dereference(gdev->chip))
+ if (!rcu_access_pointer(gdev->chip))
return -ENODEV;
cdev = kzalloc(sizeof(*cdev), GFP_KERNEL);
guard(srcu)(&gdev->srcu);
- gc = rcu_dereference(gdev->chip);
- if (!gc)
+ if (!rcu_access_pointer(gdev->chip))
return -ENODEV;
chip_dbg(gc, "added GPIO chardev (%d:%d)\n", MAJOR(devt), gdev->id);