Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

[linux.git] / drivers / gpu / drm / amd / amdgpu / amdgpu_debugfs.c

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
index 3136a0774dd9bdb146d41e501fc1496ae321de5c..a53f436fa9f1ae7c0129f8e58dd212ad70dfd0aa 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
@@ -748,6 +748,9 @@ static ssize_t amdgpu_debugfs_regs_smc_read(struct file *f, char __user *buf,
        ssize_t result = 0;
        int r;
 
+       if (!adev->smc_rreg)
+               return -EPERM;
+
        if (size & 0x3 || *pos & 0x3)
                return -EINVAL;
 
@@ -804,6 +807,9 @@ static ssize_t amdgpu_debugfs_regs_smc_write(struct file *f, const char __user *
        ssize_t result = 0;
        int r;
 
+       if (!adev->smc_wreg)
+               return -EPERM;
+
        if (size & 0x3 || *pos & 0x3)
                return -EINVAL;