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authorLyude Paul <lyude@redhat.com>2018-09-06 17:43:21 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-11-21 09:19:25 +0100
commit83f04a7f9e452f7b815238da068d44c2f47e912a (patch)
tree384a3b719b55c078cfc56bebd699a04f277a543e /drivers/gpu/drm/nouveau
parentc0845493a2b802b83babe4beadf256b6491b7414 (diff)
drm/nouveau: Check backlight IDs are >= 0, not > 0
commit dc854914999d5d52ac1b31740cb0ea8d89d0372e upstream. 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm/nouveau')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_backlight.c4
1 files 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);
}