Messages in this thread Patch in this message | | | From | David Fries <> | Subject | [PATCH 03/15] w1: Only wake up the search process if it is going to be searching | Date | Wed, 15 Jan 2014 22:29:14 -0600 |
| |
It's valid to set the search count to 0 to stop searching, so don't wake up the search thread to not search.
Signed-off-by: David Fries <David@Fries.net> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> --- drivers/w1/w1.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c index 67b6d5f..92766a9 100644 --- a/drivers/w1/w1.c +++ b/drivers/w1/w1.c @@ -243,7 +243,9 @@ static ssize_t w1_master_attribute_store_search(struct device * dev, mutex_lock(&md->mutex); md->search_count = tmp; mutex_unlock(&md->mutex); - wake_up_process(md->thread); + /* Only wake if it is going to be searching. */ + if (tmp) + wake_up_process(md->thread); return count; } -- 1.7.10.4
| |