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path: root/drivers/sbus/char/bbc_envctrl.c
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Diffstat (limited to 'drivers/sbus/char/bbc_envctrl.c')
-rw-r--r--drivers/sbus/char/bbc_envctrl.c64
1 files changed, 38 insertions, 26 deletions
diff --git a/drivers/sbus/char/bbc_envctrl.c b/drivers/sbus/char/bbc_envctrl.c
index 7c815d3327f7..28d86f9df83c 100644
--- a/drivers/sbus/char/bbc_envctrl.c
+++ b/drivers/sbus/char/bbc_envctrl.c
@@ -522,6 +522,40 @@ static void attach_one_fan(struct bbc_i2c_bus *bp, struct of_device *op,
522 set_fan_speeds(fp); 522 set_fan_speeds(fp);
523} 523}
524 524
525static void destroy_one_temp(struct bbc_cpu_temperature *tp)
526{
527 bbc_i2c_detach(tp->client);
528 kfree(tp);
529}
530
531static void destroy_all_temps(struct bbc_i2c_bus *bp)
532{
533 struct bbc_cpu_temperature *tp, *tpos;
534
535 list_for_each_entry_safe(tp, tpos, &bp->temps, bp_list) {
536 list_del(&tp->bp_list);
537 list_del(&tp->glob_list);
538 destroy_one_temp(tp);
539 }
540}
541
542static void destroy_one_fan(struct bbc_fan_control *fp)
543{
544 bbc_i2c_detach(fp->client);
545 kfree(fp);
546}
547
548static void destroy_all_fans(struct bbc_i2c_bus *bp)
549{
550 struct bbc_fan_control *fp, *fpos;
551
552 list_for_each_entry_safe(fp, fpos, &bp->fans, bp_list) {
553 list_del(&fp->bp_list);
554 list_del(&fp->glob_list);
555 destroy_one_fan(fp);
556 }
557}
558
525int bbc_envctrl_init(struct bbc_i2c_bus *bp) 559int bbc_envctrl_init(struct bbc_i2c_bus *bp)
526{ 560{
527 struct of_device *op; 561 struct of_device *op;
@@ -541,6 +575,8 @@ int bbc_envctrl_init(struct bbc_i2c_bus *bp)
541 int err = PTR_ERR(kenvctrld_task); 575 int err = PTR_ERR(kenvctrld_task);
542 576
543 kenvctrld_task = NULL; 577 kenvctrld_task = NULL;
578 destroy_all_temps(bp);
579 destroy_all_fans(bp);
544 return err; 580 return err;
545 } 581 }
546 } 582 }
@@ -548,35 +584,11 @@ int bbc_envctrl_init(struct bbc_i2c_bus *bp)
548 return 0; 584 return 0;
549} 585}
550 586
551static void destroy_one_temp(struct bbc_cpu_temperature *tp)
552{
553 bbc_i2c_detach(tp->client);
554 kfree(tp);
555}
556
557static void destroy_one_fan(struct bbc_fan_control *fp)
558{
559 bbc_i2c_detach(fp->client);
560 kfree(fp);
561}
562
563void bbc_envctrl_cleanup(struct bbc_i2c_bus *bp) 587void bbc_envctrl_cleanup(struct bbc_i2c_bus *bp)
564{ 588{
565 struct bbc_cpu_temperature *tp, *tpos;
566 struct bbc_fan_control *fp, *fpos;
567
568 if (kenvctrld_task) 589 if (kenvctrld_task)
569 kthread_stop(kenvctrld_task); 590 kthread_stop(kenvctrld_task);
570 591
571 list_for_each_entry_safe(tp, tpos, &bp->temps, bp_list) { 592 destroy_all_temps(bp);
572 list_del(&tp->bp_list); 593 destroy_all_fans(bp);
573 list_del(&tp->glob_list);
574 destroy_one_temp(tp);
575 }
576
577 list_for_each_entry_safe(fp, fpos, &bp->fans, bp_list) {
578 list_del(&fp->bp_list);
579 list_del(&fp->glob_list);
580 destroy_one_fan(fp);
581 }
582} 594}