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authorThomas Hellstrom <thellstrom@vmware.com>2019-05-07 11:07:53 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-06-11 12:22:43 +0200
commitd5a7e73e43ddf733a40de5fc08fe66d898810076 (patch)
treee8ab13083e25fdc2f0a4ac1a61b4fb612760ccad /drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
parentf37c4f41e460216ecc0f693c69542b0985f21d18 (diff)
drm/vmwgfx: Don't send drm sysfs hotplug events on initial master set
commit 63cb44441826e842b7285575b96db631cc9f2505 upstream. This may confuse user-space clients like plymouth that opens a drm file descriptor as a result of a hotplug event and then generates a new event... Cc: <stable@vger.kernel.org> Fixes: 5ea1734827bb ("drm/vmwgfx: Send a hotplug event at master_set") Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Deepak Rawat <drawat@vmware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_drv.c')
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_drv.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index 4b556e698f13..6c30c24c779f 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -1245,7 +1245,13 @@ static int vmw_master_set(struct drm_device *dev,
}
dev_priv->active_master = vmaster;
- drm_sysfs_hotplug_event(dev);
+
+ /*
+ * Inform a new master that the layout may have changed while
+ * it was gone.
+ */
+ if (!from_open)
+ drm_sysfs_hotplug_event(dev);
return 0;
}