[PATCH 1/3] drm/exynos/dsi: Use common error handling code in exynos_dsi_enable()

SF Markus Elfring
2017-10-24T08:50:13Z

Date: Tue, 24 Oct 2017 09:32:18 +0200

Add a jump target so that a bit of exception handling can be better reused
at the end of this function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
drivers/gpu/drm/exynos/exynos_drm_dsi.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
index 7904ffa9abfb..ba5fb49c5491 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
@@ -1389,8 +1389,7 @@ static void exynos_dsi_enable(struct drm_encoder *encoder)
ret = drm_panel_prepare(dsi->panel);
if (ret < 0) {
dsi->state &= ~DSIM_STATE_ENABLED;
- pm_runtime_put_sync(dsi->dev);
- return;
+ goto put_sync;
}

exynos_dsi_set_display_mode(dsi);
@@ -1401,11 +1400,14 @@ static void exynos_dsi_enable(struct drm_encoder *encoder)
dsi->state &= ~DSIM_STATE_ENABLED;
exynos_dsi_set_display_enable(dsi, false);
drm_panel_unprepare(dsi->panel);
- pm_runtime_put_sync(dsi->dev);
- return;
+ goto put_sync;
}

dsi->state |= DSIM_STATE_VIDOUT_AVAILABLE;
+ return;
+
+put_sync:
+ pm_runtime_put_sync(dsi->dev);
}

static void exynos_dsi_disable(struct drm_encoder *encoder)
--
2.14.2