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drm/nouveau: Check backlight IDs are >= 0, not > 0 

Remember, ida IDs start at 0, not 1!

Signed-off-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Lyude Paul 2018-09-06 17:43:21 -04:00 committed by Ben Skeggs
parent 62e681f7dc
commit dc85491499
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/nouveau/nouveau_backlight.c
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@ -116,7 +116,7 @@ nv40_backlight_init(struct drm_connector *connector)
&nv40_bl_ops, &props); &nv40_bl_ops, &props);
if (IS_ERR(bd)) { if (IS_ERR(bd)) {
if (bl_connector.id > 0) if (bl_connector.id >= 0)
ida_simple_remove(&bl_ida, bl_connector.id); ida_simple_remove(&bl_ida, bl_connector.id);
return PTR_ERR(bd); return PTR_ERR(bd);
} }
@ -249,7 +249,7 @@ nv50_backlight_init(struct drm_connector *connector)
nv_encoder, ops, &props); nv_encoder, ops, &props);
if (IS_ERR(bd)) { if (IS_ERR(bd)) {
if (bl_connector.id > 0) if (bl_connector.id >= 0)
ida_simple_remove(&bl_ida, bl_connector.id); ida_simple_remove(&bl_ida, bl_connector.id);
return PTR_ERR(bd); return PTR_ERR(bd);
} }