bus: ti-sysc: Simplify cleanup upon failures in sysc_probe()

[ Upstream commit a304f483 ]

The clocks are not yet parsed and prepared until after a successful
sysc_get_clocks(), so there is no need to unprepare the clocks upon
any failure of any of the prior functions in sysc_probe(). The current
code path would have been a no-op because of the clock validity checks
within sysc_unprepare(), but let's just simplify the cleanup path by
returning the error directly.

While at this, also fix the cleanup path for a sysc_init_resets()
failure which is executed after the clocks are prepared.
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

drivers/bus/ti-sysc.c

@@ -1685,7 +1685,7 @@ static int sysc_probe(struct platform_device *pdev)
 
 	error = sysc_init_dts_quirks(ddata);
 	if (error)
-		goto unprepare;
+		return error;
 
 	error = sysc_get_clocks(ddata);
 	if (error)
@@ -1693,27 +1693,27 @@ static int sysc_probe(struct platform_device *pdev)
 
 	error = sysc_map_and_check_registers(ddata);
 	if (error)
-		goto unprepare;
+		return error;
 
 	error = sysc_init_sysc_mask(ddata);
 	if (error)
-		goto unprepare;
+		return error;
 
 	error = sysc_init_idlemodes(ddata);
 	if (error)
-		goto unprepare;
+		return error;
 
 	error = sysc_init_syss_mask(ddata);
 	if (error)
-		goto unprepare;
+		return error;
 
 	error = sysc_init_pdata(ddata);
 	if (error)
-		goto unprepare;
+		return error;
 
 	error = sysc_init_resets(ddata);
 	if (error)
-		return error;
+		goto unprepare;
 
 	pm_runtime_enable(ddata->dev);
 	error = sysc_init_module(ddata);