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| author | Thomas Hebb <tommyhebb@gmail.com> | 2021-04-18 19:03:04 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-07-19 08:53:14 +0200 |
| commit | 1fe8005303a3b18d6b379501a9a4b671ae41cdbc (patch) | |
| tree | ffe1e5b30aa30007dea0184e54658e82eeb96a44 /drivers/gpu | |
| parent | 85ea095dc081f854cca4f8a1bd931e71907d004e (diff) | |
| download | linux-stable-1fe8005303a3b18d6b379501a9a4b671ae41cdbc.tar.gz linux-stable-1fe8005303a3b18d6b379501a9a4b671ae41cdbc.tar.bz2 linux-stable-1fe8005303a3b18d6b379501a9a4b671ae41cdbc.zip | |
drm/rockchip: dsi: remove extra component_del() call
commit b354498bbe65c917d521b3b56317ddc9ab217425 upstream.
commit cf6d100dd238 ("drm/rockchip: dsi: add dual mipi support") added
this devcnt field and call to component_del(). However, these both
appear to be erroneous changes left over from an earlier version of the
patch. In the version merged, nothing ever modifies devcnt, meaning
component_del() runs unconditionally and in addition to the
component_del() calls in dw_mipi_dsi_rockchip_host_detach(). The second
call fails to delete anything and produces a warning in dmesg.
If we look at the previous version of the patch[1], however, we see that
it had logic to calculate devcnt and call component_add() in certain
situations. This was removed in v6, and the fact that the deletion code
was not appears to have been an oversight.
[1] https://patchwork.kernel.org/project/dri-devel/patch/20180821140515.22246-8-heiko@sntech.de/
Fixes: cf6d100dd238 ("drm/rockchip: dsi: add dual mipi support")
Cc: stable@vger.kernel.org
Signed-off-by: Thomas Hebb <tommyhebb@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/201385acb0eeb5dfb037afdc6a94bfbcdab97f99.1618797778.git.tommyhebb@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c index ecb59dc6c8b8..8dc91c2d916a 100644 --- a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c +++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c @@ -231,7 +231,6 @@ struct dw_mipi_dsi_rockchip { struct dw_mipi_dsi *dmd; const struct rockchip_dw_dsi_chip_data *cdata; struct dw_mipi_dsi_plat_data pdata; - int devcnt; }; struct dphy_pll_parameter_map { @@ -1001,9 +1000,6 @@ static int dw_mipi_dsi_rockchip_remove(struct platform_device *pdev) { struct dw_mipi_dsi_rockchip *dsi = platform_get_drvdata(pdev); - if (dsi->devcnt == 0) - component_del(dsi->dev, &dw_mipi_dsi_rockchip_ops); - dw_mipi_dsi_remove(dsi->dmd); return 0; |