drm/amd/display: Release clck_src memory if clk_src_construct fails

[ Upstream commit 674704a ]

[Why]
Coverity reports RESOURCE_LEAK for some implemenations
of clock_source_create. Do not release memory of clk_src
if contructor fails.

[How]
Free clk_src if contructor fails.

Reviewed-by: Harry Wentland <[email protected]>
Acked-by: Tom Chung <[email protected]>
Signed-off-by: Hersen Wu <[email protected]>
Tested-by: Daniel Wheeler <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>

drivers/gpu/drm/amd/display/dc/resource/dce80/dce80_resource.c

@@ -1538,6 +1538,7 @@ struct resource_pool *dce83_create_resource_pool(
 	if (dce83_construct(num_virtual_links, dc, pool))
 		return &pool->base;
 
+	kfree(pool);
 	BREAK_TO_DEBUGGER();
 	return NULL;
 }

drivers/gpu/drm/amd/display/dc/resource/dcn31/dcn31_resource.c

@@ -1864,6 +1864,7 @@ static struct clock_source *dcn30_clock_source_create(
 		return &clk_src->base;
 	}
 
+	kfree(clk_src);
 	BREAK_TO_DEBUGGER();
 	return NULL;
 }

drivers/gpu/drm/amd/display/dc/resource/dcn314/dcn314_resource.c

@@ -1660,8 +1660,8 @@ static struct clock_source *dcn31_clock_source_create(
 		return &clk_src->base;
 	}
 
-	BREAK_TO_DEBUGGER();
 	kfree(clk_src);
+	BREAK_TO_DEBUGGER();
 	return NULL;
 }
 
@@ -1821,8 +1821,8 @@ static struct clock_source *dcn30_clock_source_create(
 		return &clk_src->base;
 	}
 
-	BREAK_TO_DEBUGGER();
 	kfree(clk_src);
+	BREAK_TO_DEBUGGER();
 	return NULL;
 }
 

drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c

@@ -1716,6 +1716,7 @@ static struct clock_source *dcn35_clock_source_create(
 		return &clk_src->base;
 	}
 
+	kfree(clk_src);
 	BREAK_TO_DEBUGGER();
 	return NULL;
 }

drivers/gpu/drm/amd/display/dc/resource/dcn351/dcn351_resource.c

@@ -1696,6 +1696,7 @@ static struct clock_source *dcn35_clock_source_create(
 		return &clk_src->base;
 	}
 
+	kfree(clk_src);
 	BREAK_TO_DEBUGGER();
 	return NULL;
 }