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path: root/drivers/iio/industrialio-event.c
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Diffstat (limited to 'drivers/iio/industrialio-event.c')
-rw-r--r--drivers/iio/industrialio-event.c20
1 files changed, 14 insertions, 6 deletions
diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c
index 10aa9ef86cec..6be65ef5faa9 100644
--- a/drivers/iio/industrialio-event.c
+++ b/drivers/iio/industrialio-event.c
@@ -72,7 +72,8 @@ EXPORT_SYMBOL(iio_push_event);
72static unsigned int iio_event_poll(struct file *filep, 72static unsigned int iio_event_poll(struct file *filep,
73 struct poll_table_struct *wait) 73 struct poll_table_struct *wait)
74{ 74{
75 struct iio_event_interface *ev_int = filep->private_data; 75 struct iio_dev *indio_dev = filep->private_data;
76 struct iio_event_interface *ev_int = indio_dev->event_interface;
76 unsigned int events = 0; 77 unsigned int events = 0;
77 78
78 poll_wait(filep, &ev_int->wait, wait); 79 poll_wait(filep, &ev_int->wait, wait);
@@ -90,7 +91,8 @@ static ssize_t iio_event_chrdev_read(struct file *filep,
90 size_t count, 91 size_t count,
91 loff_t *f_ps) 92 loff_t *f_ps)
92{ 93{
93 struct iio_event_interface *ev_int = filep->private_data; 94 struct iio_dev *indio_dev = filep->private_data;
95 struct iio_event_interface *ev_int = indio_dev->event_interface;
94 unsigned int copied; 96 unsigned int copied;
95 int ret; 97 int ret;
96 98
@@ -121,7 +123,8 @@ error_unlock:
121 123
122static int iio_event_chrdev_release(struct inode *inode, struct file *filep) 124static int iio_event_chrdev_release(struct inode *inode, struct file *filep)
123{ 125{
124 struct iio_event_interface *ev_int = filep->private_data; 126 struct iio_dev *indio_dev = filep->private_data;
127 struct iio_event_interface *ev_int = indio_dev->event_interface;
125 128
126 spin_lock_irq(&ev_int->wait.lock); 129 spin_lock_irq(&ev_int->wait.lock);
127 __clear_bit(IIO_BUSY_BIT_POS, &ev_int->flags); 130 __clear_bit(IIO_BUSY_BIT_POS, &ev_int->flags);
@@ -133,6 +136,8 @@ static int iio_event_chrdev_release(struct inode *inode, struct file *filep)
133 kfifo_reset_out(&ev_int->det_events); 136 kfifo_reset_out(&ev_int->det_events);
134 spin_unlock_irq(&ev_int->wait.lock); 137 spin_unlock_irq(&ev_int->wait.lock);
135 138
139 iio_device_put(indio_dev);
140
136 return 0; 141 return 0;
137} 142}
138 143
@@ -158,12 +163,15 @@ int iio_event_getfd(struct iio_dev *indio_dev)
158 return -EBUSY; 163 return -EBUSY;
159 } 164 }
160 spin_unlock_irq(&ev_int->wait.lock); 165 spin_unlock_irq(&ev_int->wait.lock);
161 fd = anon_inode_getfd("iio:event", 166 iio_device_get(indio_dev);
162 &iio_event_chrdev_fileops, ev_int, O_RDONLY); 167
168 fd = anon_inode_getfd("iio:event", &iio_event_chrdev_fileops,
169 indio_dev, O_RDONLY);
163 if (fd < 0) { 170 if (fd < 0) {
164 spin_lock_irq(&ev_int->wait.lock); 171 spin_lock_irq(&ev_int->wait.lock);
165 __clear_bit(IIO_BUSY_BIT_POS, &ev_int->flags); 172 __clear_bit(IIO_BUSY_BIT_POS, &ev_int->flags);
166 spin_unlock_irq(&ev_int->wait.lock); 173 spin_unlock_irq(&ev_int->wait.lock);
174 iio_device_put(indio_dev);
167 } 175 }
168 return fd; 176 return fd;
169} 177}
@@ -276,7 +284,7 @@ static int iio_device_add_event_sysfs(struct iio_dev *indio_dev,
276 goto error_ret; 284 goto error_ret;
277 } 285 }
278 if (chan->modified) 286 if (chan->modified)
279 mask = IIO_MOD_EVENT_CODE(chan->type, 0, chan->channel, 287 mask = IIO_MOD_EVENT_CODE(chan->type, 0, chan->channel2,
280 i/IIO_EV_DIR_MAX, 288 i/IIO_EV_DIR_MAX,
281 i%IIO_EV_DIR_MAX); 289 i%IIO_EV_DIR_MAX);
282 else if (chan->differential) 290 else if (chan->differential)