It is useful for debugging when we know if something disabled
the in-kernel rfkill input handler.
Signed-off-by: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
---
net/rfkill/core.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- wireless-testing.orig/net/rfkill/core.c 2009-06-07 11:46:05.000000000 +0200
+++ wireless-testing/net/rfkill/core.c 2009-06-07 11:53:40.000000000 +0200
@@ -1134,7 +1134,8 @@ static int rfkill_fop_release(struct ino
#ifdef CONFIG_RFKILL_INPUT
if (data->input_handler)
- atomic_dec(&rfkill_input_disabled);
+ if (atomic_dec_return(&rfkill_input_disabled) == 0)
+ printk(KERN_DEBUG "rfkill: input handler enabled\n");
#endif
kfree(data);
@@ -1157,7 +1158,8 @@ static long rfkill_fop_ioctl(struct file
mutex_lock(&data->mtx);
if (!data->input_handler) {
- atomic_inc(&rfkill_input_disabled);
+ if (atomic_inc_return(&rfkill_input_disabled) == 1)
+ printk(KERN_DEBUG "rfkill: input handler disabled\n");
data->input_handler = true;
}
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
