[PATCH] drm/sun4i: dsi: Make use of the helper function dev_err_probe()

From: Cai Huoqing
Date: Thu Sep 16 2021 - 06:56:35 EST


When possible use dev_err_probe help to properly deal with the
PROBE_DEFER error, the benefit is that DEFER issue will be logged
in the devices_deferred debugfs file.
And using dev_err_probe() can reduce code size, the error value
gets printed.

Signed-off-by: Cai Huoqing <caihuoqing@xxxxxxxxx>
---
drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c | 14 ++++++--------
1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
index 4f5efcace68e..be60b16bcea9 100644
--- a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
+++ b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
@@ -1128,10 +1128,9 @@ static int sun6i_dsi_probe(struct platform_device *pdev)
}

dsi->regulator = devm_regulator_get(dev, "vcc-dsi");
- if (IS_ERR(dsi->regulator)) {
- dev_err(dev, "Couldn't get VCC-DSI supply\n");
- return PTR_ERR(dsi->regulator);
- }
+ if (IS_ERR(dsi->regulator))
+ return dev_err_probe(dev, PTR_ERR(dsi->regulator),
+ "Couldn't get VCC-DSI supply\n");

dsi->reset = devm_reset_control_get_shared(dev, NULL);
if (IS_ERR(dsi->reset)) {
@@ -1146,10 +1145,9 @@ static int sun6i_dsi_probe(struct platform_device *pdev)
}

dsi->bus_clk = devm_clk_get(dev, bus_clk_name);
- if (IS_ERR(dsi->bus_clk)) {
- dev_err(dev, "Couldn't get the DSI bus clock\n");
- return PTR_ERR(dsi->bus_clk);
- }
+ if (IS_ERR(dsi->bus_clk))
+ return dev_err_probe(dev, PTR_ERR(dsi->bus_clk),
+ "Couldn't get the DSI bus clock\n");

ret = regmap_mmio_attach_clk(dsi->regs, dsi->bus_clk);
if (ret)
--
2.25.1