[PATCH 3/9] hostap: Add missing annotations for prism2_bss_list_proc_start() and prism2_bss_list_proc_stop

Jules Irenge
2020-04-11T00:20:22Z

Sparse reports warnings at prism2_bss_list_proc_start() and prism2_bss_list_proc_stop()

warning: context imbalance in prism2_wds_proc_stop() - unexpected unlock
warning: context imbalance in prism2_bss_list_proc_start() - wrong count at exit

The root cause is the missing annotations at prism2_bss_list_proc_start()

Add the missing __acquires(&local->lock) annotation
Add the missing __releases(&local->lock) annotation

Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
---
drivers/net/wireless/intersil/hostap/hostap_proc.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/net/wireless/intersil/hostap/hostap_proc.c b/drivers/net/wireless/intersil/hostap/hostap_proc.c
index a2ee4693eaed..97c270845fd1 100644
--- a/drivers/net/wireless/intersil/hostap/hostap_proc.c
+++ b/drivers/net/wireless/intersil/hostap/hostap_proc.c
@@ -149,6 +149,7 @@ static int prism2_bss_list_proc_show(struct seq_file *m, void *v)
}

static void *prism2_bss_list_proc_start(struct seq_file *m, loff_t *_pos)
+ __acquires(&local->lock)
{
local_info_t *local = PDE_DATA(file_inode(m->file));
spin_lock_bh(&local->lock);
@@ -162,6 +163,7 @@ static void *prism2_bss_list_proc_next(struct seq_file *m, void *v, loff_t *_pos
}

static void prism2_bss_list_proc_stop(struct seq_file *m, void *v)
+ __releases(&local->lock)
{
local_info_t *local = PDE_DATA(file_inode(m->file));
spin_unlock_bh(&local->lock);
--
2.24.1