4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Haneen Mohammed <[email protected]>

commit 7f6df440b8623c441c42d070bf592e2d2c1fa9bb upstream.

This patch matches the sysfs name used in the unlinking with the
linking function. Otherwise, remove_compat_control_link() fails to remove
sysfs created by create_compat_control_link() in drm_dev_register().

Fixes: 6449b088dd51 ("drm: Add fake controlD* symlinks for backwards
compat")
Cc: Dave Airlie <[email protected]>
Cc: Alex Deucher <[email protected]>
Cc: Emil Velikov <[email protected]>
Cc: David Herrmann <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Daniel Vetter <[email protected]>
Cc: Gustavo Padovan <[email protected]>
Cc: Maarten Lankhorst <[email protected]>
Cc: Sean Paul <[email protected]>
Cc: David Airlie <[email protected]>
Cc: [email protected]
Cc: <[email protected]> # v4.10+
Signed-off-by: Haneen Mohammed <[email protected]>
[seanpaul added Fixes and Cc tags]
Signed-off-by: Sean Paul <[email protected]>
Link: 
https://patchwork.freedesktop.org/patch/msgid/20180511041542.GA4253@haneen-vb
Signed-off-by: Greg Kroah-Hartman <[email protected]>

---
 drivers/gpu/drm/drm_drv.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -749,7 +749,7 @@ static void remove_compat_control_link(s
        if (!minor)
                return;
 
-       name = kasprintf(GFP_KERNEL, "controlD%d", minor->index);
+       name = kasprintf(GFP_KERNEL, "controlD%d", minor->index + 64);
        if (!name)
                return;
 


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