提交 c393e9b2 编写于 作者: R Randy Dunlap 提交者: Oded Gabbay

drm/amdkfd: fix amdkfd use-after-free GP fault

Fix GP fault caused by dev_info() reference to a struct device*
after the device has been freed (use after free).
kfd_chardev_exit() frees the device so 'kfd_device' should not
be used after calling kfd_chardev_exit().
Signed-off-by: NRandy Dunlap <rdunlap@infradead.org>
Signed-off-by: NOded Gabbay <oded.gabbay@gmail.com>
上级 8c946b89
......@@ -24,6 +24,7 @@
#include <linux/sched.h>
#include <linux/moduleparam.h>
#include <linux/device.h>
#include <linux/printk.h>
#include "kfd_priv.h"
#define KFD_DRIVER_AUTHOR "AMD Inc. and others"
......@@ -132,7 +133,7 @@ static void __exit kfd_module_exit(void)
kfd_process_destroy_wq();
kfd_topology_shutdown();
kfd_chardev_exit();
dev_info(kfd_device, "Removed module\n");
pr_info("amdkfd: Removed module\n");
}
module_init(kfd_module_init);
......
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