Patch "drm/vmwgfx: Fix error paths when mapping framebuffer" has been added to the 4.4-stable tree

Patch "drm/vmwgfx: Fix error paths when mapping framebuffer" has been added to the 4.4-stable tree

[gregkh]

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

    drm/vmwgfx: Fix error paths when mapping framebuffer

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-vmwgfx-fix-error-paths-when-mapping-framebuffer.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 <stable@vger.kernel.org> know about it.


>From 58541f7a6458e17ab417321b284f0090f530aa91 Mon Sep 17 00:00:00 2001
From: Sinclair Yeh <syeh@vmware.com>
Date: Thu, 7 Jul 2016 11:01:30 -0700
Subject: drm/vmwgfx: Fix error paths when mapping framebuffer

From: Sinclair Yeh <syeh@vmware.com>

commit 58541f7a6458e17ab417321b284f0090f530aa91 upstream.

Rather than returning immediately, make sure to unlock the
mutexes first.

Signed-off-by: Sinclair Yeh <syeh@vmware.com>
Reviewed-by: Charmaine Lee <charmainel@vmware.com>
Reported-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/gpu/drm/vmwgfx/vmwgfx_fb.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c
@@ -589,7 +589,7 @@ static int vmw_fb_set_par(struct fb_info
 		ret = vfb->pin(vfb);
 		if (ret) {
 			DRM_ERROR("Could not pin the fbdev framebuffer.\n");
-			return ret;
+			goto out_unlock;
 		}
 
 		ret = ttm_bo_kmap(&par->vmw_bo->base, 0,
@@ -597,7 +597,7 @@ static int vmw_fb_set_par(struct fb_info
 		if (ret) {
 			vfb->unpin(vfb);
 			DRM_ERROR("Could not map the fbdev framebuffer.\n");
-			return ret;
+			goto out_unlock;
 		}
 
 		par->bo_ptr = ttm_kmap_obj_virtual(&par->map, &par->bo_iowrite);


Patches currently in stable-queue which might be from syeh@vmware.com are

queue-4.4/drm-ttm-make-ttm_bo_mem_compat-available.patch
queue-4.4/drm-vmwgfx-delay-pinning-fbdev-framebuffer-until-after-mode-set.patch
queue-4.4/drm-vmwgfx-add-an-option-to-change-assumed-fb-bpp.patch
queue-4.4/drm-vmwgfx-check-pin-count-before-attempting-to-move-a-buffer.patch
queue-4.4/drm-vmwgfx-work-around-mode-set-failure-in-2d-vms.patch
queue-4.4/drm-vmwgfx-fix-error-paths-when-mapping-framebuffer.patch