Patch "drm/amd/amdgpu: Return error if initiating read out of range on vram" has been added to the 4.4-stable tree

This is a note to let you know that I've just added the patch titled

drm/amd/amdgpu: Return error if initiating read out of range on vram

to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
drm-amd-amdgpu-return-error-if-initiating-read-out-of-range-on-vram.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Tom St Denis <[email protected]>
Date: Tue, 23 May 2017 11:35:22 -0400
Subject: drm/amd/amdgpu: Return error if initiating read out of range on vram
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From: Tom St Denis <[email protected]>

commit 9156e723301c0a7a7def4cde820e018ce791b842 upstream.

If you initiate a read that is out of the VRAM address space return ENXIO instead of 0.

Reads that begin below that point will read upto the VRAM limit as before.

---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c |    3 +++
 1 file changed, 3 insertions(+)

@@ -1126,6 +1126,9 @@ static ssize_t amdgpu_ttm_vram_read(stru
 	if (size & 0x3 || *pos & 0x3)
 		return -EINVAL;
 
+	if (*pos >= adev->mc.mc_vram_size)
+		return -ENXIO;
+
 	while (size) {
 		unsigned long flags;
 		uint32_t value;

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/drm-amd-amdgpu-return-error-if-initiating-read-out-of-range-on-vram.patch