On Tuesday, January 21, 2014 3:58 PM, Dan Carpenter wrote:
>
> If exynos_drm_subdrv_open() fails then we re-use "file_priv".
>
> Fixes: 96f5421523df ('drm/exynos: use a new anon file for exynos gem mmaper')
> Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
Reviewed-by: Jingoo Han <jg1....@samsung.com>
Yes, right.
The freed 'file_priv' should not be re-used.
Best regards,
Jingoo Han
>
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c
> b/drivers/gpu/drm/exynos/exynos_drm_drv.c
> index 9d096a0c5f8d..3c845292845a 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
> @@ -174,6 +174,7 @@ static int exynos_drm_open(struct drm_device *dev, struct
> drm_file *file)
> if (ret) {
> kfree(file_priv);
> file->driver_priv = NULL;
> + return ret;
> }
>
> anon_filp = anon_inode_getfile("exynos_gem", &exynos_drm_gem_fops,
> @@ -186,7 +187,7 @@ static int exynos_drm_open(struct drm_device *dev, struct
> drm_file *file)
> anon_filp->f_mode = FMODE_READ | FMODE_WRITE;
> file_priv->anon_filp = anon_filp;
>
> - return ret;
> + return 0;
> }
>
> static void exynos_drm_preclose(struct drm_device *dev,
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