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| author | Hsin-Yi Wang <hsinyi@chromium.org> | 2019-05-29 13:25:55 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-07-10 10:52:23 +0300 |
| commit | 7dd1a64b8f8ca8c5aea66c92d7f35fbd2181b22f (patch) | |
| tree | 6c4c72072d5d9bff5159b34cd6838aad1dcec550 /drivers/gpu | |
| parent | 815c6c19890fa962865e9fcec81917f43936d4c0 (diff) | |
| download | linux-7dd1a64b8f8ca8c5aea66c92d7f35fbd2181b22f.tar.xz | |
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>
Diffstat (limited to 'drivers/gpu')
| -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 8718d123ccaa..bbfe3a464aea 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c @@ -400,6 +400,7 @@ 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; } |