[PATCH v4 1/6] drm/nouveau: Check backlight IDs are >= 0, not > 0

[Lyude Paul <lyude@xxxxxxxxxx>]

Remember, ida IDs start at 0, not 1!

Signed-off-by: Lyude Paul <lyude@xxxxxxxxxx>
Reviewed-by: Karol Herbst <kherbst@xxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
---
 drivers/gpu/drm/nouveau/nouveau_backlight.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_backlight.c b/drivers/gpu/drm/nouveau/nouveau_backlight.c
index 408b955e5c39..6dd72bc32897 100644
--- a/drivers/gpu/drm/nouveau/nouveau_backlight.c
+++ b/drivers/gpu/drm/nouveau/nouveau_backlight.c
@@ -116,7 +116,7 @@ nv40_backlight_init(struct drm_connector *connector)
 				       &nv40_bl_ops, &props);
 
 	if (IS_ERR(bd)) {
-		if (bl_connector.id > 0)
+		if (bl_connector.id >= 0)
 			ida_simple_remove(&bl_ida, bl_connector.id);
 		return PTR_ERR(bd);
 	}
@@ -249,7 +249,7 @@ nv50_backlight_init(struct drm_connector *connector)
 				       nv_encoder, ops, &props);
 
 	if (IS_ERR(bd)) {
-		if (bl_connector.id > 0)
+		if (bl_connector.id >= 0)
 			ida_simple_remove(&bl_ida, bl_connector.id);
 		return PTR_ERR(bd);
 	}
-- 
2.17.1

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