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drm/amdkfd: Fix permissions of hang_hws 

Reading from /sys/kernel/debug/kfd/hang_hws would cause a kernel
oops because we didn't implement a read callback. Set the permission
to write-only to prevent that.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: shaoyunl  <shaoyun.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Felix Kuehling 2019-12-19 22:36:55 -05:00 committed by Alex Deucher
parent b6025eeaa1
commit 2bdac179e2
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/amdkfd/kfd_debugfs.c
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@ -93,7 +93,7 @@ void kfd_debugfs_init(void)
kfd_debugfs_hqds_by_device, &kfd_debugfs_fops);
debugfs_create_file("rls", S_IFREG | 0444, debugfs_root,
kfd_debugfs_rls_by_device, &kfd_debugfs_fops);
debugfs_create_file("hang_hws", S_IFREG | 0644, debugfs_root,
debugfs_create_file("hang_hws", S_IFREG | 0200, debugfs_root,
NULL, &kfd_debugfs_hang_hws_fops);
}