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rfkill: print events when input handler is disabled/enabled

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It is useful for debugging when we know if something disabled
the in-kernel rfkill input handler.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2009-06-07 12:26:52 +02:00 committed by John W. Linville
parent 9b9c5aaeed
commit 207ee16217
1 changed files with 4 additions and 2 deletions
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6
net/rfkill/core.c
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@ -1134,7 +1134,8 @@ static int rfkill_fop_release(struct inode *inode, struct file *file)
#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 *file, unsigned int cmd,
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;
}