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| author | Hsin-Yi Wang <hsinyi@chromium.org> | 2019-05-29 18:25:55 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-07-10 09:53:34 +0200 |
| commit | 34e5e1c4874fdf8f1ac9280c8dd0e92e10b337be (patch) | |
| tree | c0e41725f40c7fa4481de2c718d48b70c07cf671 | |
| parent | a8a86e9a5533af185bbadcc965d207613e642ba9 (diff) | |
| download | linux-stable-34e5e1c4874fdf8f1ac9280c8dd0e92e10b337be.tar.gz | |
drm/mediatek: clear num_pipes when unbind driver
[ Upstream commit a4cd1d2b016d5d043ab2c4b9c4ec50a5805f5396 ]
num_pipes is used for mutex created in mtk_drm_crtc_create(). If we
don't clear num_pipes count, when rebinding driver, the count will
be accumulated. From mtk_disp_mutex_get(), there can only be at most
10 mutex id. Clear this number so it starts from 0 in every rebind.
Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.")
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Signed-off-by: CK Hu <ck.hu@mediatek.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/gpu/drm/mediatek/mtk_drm_drv.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c index 3df8a9dbccfef7..fd83046d8376bd 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c @@ -393,6 +393,7 @@ static void mtk_drm_unbind(struct device *dev) drm_dev_unregister(private->drm); mtk_drm_kms_deinit(private->drm); drm_dev_put(private->drm); + private->num_pipes = 0; private->drm = NULL; } |