Commit 2e4c3045 authored by Christian Gromm's avatar Christian Gromm Committed by Greg Kroah-Hartman
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Staging: most: fix dereferencing freed memory 



This patch fixes the dereferencing of freed memory.

Reported-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: default avatarChristian Gromm <christian.gromm@microchip.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 7ac5c9f0

drivers/staging/most/aim-cdev/cdev.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -124,9 +124,9 @@ static int aim_close(struct inode *inode, struct file *filp) 
		cdev_del(&channel->cdev);

		cdev_del(&channel->cdev);

		kfifo_free(&channel->fifo);

		kfifo_free(&channel->fifo);

		list_del(&channel->list);

		list_del(&channel->list);

		kfree(channel);

		ida_simple_remove(&minor_id, MINOR(channel->devno));

		ida_simple_remove(&minor_id, MINOR(channel->devno));

		wake_up_interruptible(&channel->wq);

		wake_up_interruptible(&channel->wq);

		kfree(channel);

		return 0;

		return 0;

	}

	}

	mutex_unlock(&channel->io_mutex);

	mutex_unlock(&channel->io_mutex);