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drm/exynos/exynos7_drm_decon: free resources when clk_set_parent() failed. 

In exynos7_decon_resume, When it fails, we must use clk_disable_unprepare()
to free resource that have been used.

Fixes: 6f83d20838 ("drm/exynos: use DRM_DEV_ERROR to print out error
message")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jian Zhang <zhangjian210@huawei.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This commit is contained in:
Jian Zhang 2022-07-12 13:56:11 +09:00 committed by Inki Dae
parent f4284724c2
commit 48b927770f
1 changed files with 13 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
drivers/gpu/drm/exynos/exynos7_drm_decon.c
View File

@ -801,31 +801,40 @@ static int exynos7_decon_resume(struct device *dev)
if (ret < 0) {
DRM_DEV_ERROR(dev, "Failed to prepare_enable the pclk [%d]\n",
ret);
return ret;
goto err_pclk_enable;
}
ret = clk_prepare_enable(ctx->aclk);
if (ret < 0) {
DRM_DEV_ERROR(dev, "Failed to prepare_enable the aclk [%d]\n",
ret);
return ret;
goto err_aclk_enable;
}
ret = clk_prepare_enable(ctx->eclk);
if (ret < 0) {
DRM_DEV_ERROR(dev, "Failed to prepare_enable the eclk [%d]\n",
ret);
return ret;
goto err_eclk_enable;
}
ret = clk_prepare_enable(ctx->vclk);
if (ret < 0) {
DRM_DEV_ERROR(dev, "Failed to prepare_enable the vclk [%d]\n",
ret);
return ret;
goto err_vclk_enable;
}
return 0;
err_vclk_enable:
clk_disable_unprepare(ctx->eclk);
err_eclk_enable:
clk_disable_unprepare(ctx->aclk);
err_aclk_enable:
clk_disable_unprepare(ctx->pclk);
err_pclk_enable:
return ret;
}
#endif