The hdmi common device registration function does not need extern definition and for error case and unregister case, exynos_drm_hdmi_pdev should be cleared.
Signed-off-by: Seung-Woo Kim <sw0312.kim at samsung.com> --- This commit is based on exynos-drm-next and my previous commit "drm/exynos: fix wrong return check for platform_register_simple". Link: http://www.mail-archive.com/dri-devel at lists.freedesktop.org/msg37144.html drivers/gpu/drm/exynos/exynos_drm_drv.h | 2 +- drivers/gpu/drm/exynos/exynos_drm_hdmi.c | 14 ++++++++++---- 2 files changed, 11 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h index 4606fac..635d4c5 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.h +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h @@ -322,7 +322,7 @@ void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file); * this function registers exynos drm hdmi platform device. It ensures only one * instance of the device is created. */ -extern int exynos_platform_device_hdmi_register(void); +int exynos_platform_device_hdmi_register(void); /* * this function unregisters exynos drm hdmi platform device if it exists. diff --git a/drivers/gpu/drm/exynos/exynos_drm_hdmi.c b/drivers/gpu/drm/exynos/exynos_drm_hdmi.c index 6986a1b..ba2f0f1 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_hdmi.c @@ -51,21 +51,27 @@ struct drm_hdmi_context { int exynos_platform_device_hdmi_register(void) { + struct platform_device *pdev; + if (exynos_drm_hdmi_pdev) return -EEXIST; - exynos_drm_hdmi_pdev = platform_device_register_simple( + pdev = platform_device_register_simple( "exynos-drm-hdmi", -1, NULL, 0); - if (IS_ERR(exynos_drm_hdmi_pdev)) - return PTR_ERR(exynos_drm_hdmi_pdev); + if (IS_ERR(pdev)) + return PTR_ERR(pdev); + + exynos_drm_hdmi_pdev = pdev; return 0; } void exynos_platform_device_hdmi_unregister(void) { - if (exynos_drm_hdmi_pdev) + if (exynos_drm_hdmi_pdev) { platform_device_unregister(exynos_drm_hdmi_pdev); + exynos_drm_hdmi_pdev = NULL; + } } void exynos_hdmi_drv_attach(struct exynos_drm_hdmi_context *ctx) -- 1.7.4.1
