提交 f1cba532 编写于 作者: D Dan Carpenter 提交者: Dmitry Torokhov

Input: adxl34x - fix leak and use after free

These are a couple smatch issues.  In the original code, if only one of
the allocation fails we leak the other variable so we should goto
out_free_mem.

Also there was a use after free if debugging was enabled and so I moved
the kfree() down a line.
Signed-off-by: NDan Carpenter <error27@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
上级 0fffed27
......@@ -432,11 +432,10 @@ void adxl34x_resume(struct adxl34x *ac)
if (ac->suspended && !ac->disabled && ac->opened)
__adxl34x_enable(ac);
ac->suspended= false;
ac->suspended = false;
mutex_unlock(&ac->mutex);
}
EXPORT_SYMBOL_GPL(adxl34x_resume);
static ssize_t adxl34x_disable_show(struct device *dev,
......@@ -709,7 +708,7 @@ struct adxl34x *adxl34x_probe(struct device *dev, int irq,
input_dev = input_allocate_device();
if (!ac || !input_dev) {
err = -ENOMEM;
goto err_out;
goto err_free_mem;
}
ac->fifo_delay = fifo_delay_default;
......@@ -904,9 +903,9 @@ int adxl34x_remove(struct adxl34x *ac)
sysfs_remove_group(&ac->dev->kobj, &adxl34x_attr_group);
free_irq(ac->irq, ac);
input_unregister_device(ac->input);
dev_dbg(ac->dev, "unregistered accelerometer\n");
kfree(ac);
dev_dbg(ac->dev, "unregistered accelerometer\n");
return 0;
}
EXPORT_SYMBOL_GPL(adxl34x_remove);
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册