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Commit 75c80753 authored by Jonathan Cameron's avatar Jonathan Cameron Committed by Greg Kroah-Hartman
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staging: iio: Ensure mutex is correctly unlocked in __iio_push_event 



This error was picked up by running the smatch static
checker over all the IIO subsytem.

Signed-off-by: default avatarJonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 0daa04a5

drivers/staging/iio/industrialio-core.c

+4 −1
Original line number Diff line number Diff line
@@ -79,11 +79,14 @@ EXPORT_SYMBOL(__iio_change_event); 
	/* Does anyone care? */

	mutex_lock(&ev_int->event_list_lock);

	if (test_bit(IIO_BUSY_BIT_POS, &ev_int->handler.flags)) {

		if (ev_int->current_events == ev_int->max_events)

		if (ev_int->current_events == ev_int->max_events) {

			mutex_unlock(&ev_int->event_list_lock);

			return 0;

		}

		ev = kmalloc(sizeof(*ev), GFP_KERNEL);

		if (ev == NULL) {

			ret = -ENOMEM;

			mutex_unlock(&ev_int->event_list_lock);

			goto error_ret;

		}

		ev->ev.id = ev_code;