drm/amd/display: Use kernel alloc/free

Abstractions are frowned upon.

cocci script:
virtual context
virtual patch
virtual org
virtual report

@@
expression ptr;
@@

- dm_alloc(ptr)
+ kzalloc(ptr, GFP_KERNEL)

@@
expression ptr, size;
@@

- dm_realloc(ptr, size)
+ krealloc(ptr, size, GFP_KERNEL)

@@
expression ptr;
@@

- dm_free(ptr)
+ kfree(ptr)

v2: use GFP_KERNEL, not GFP_ATOMIC. add cocci script

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 7 insertions, 5 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_clock_source.c b/drivers/gpu/drm/amd/display/dc/dce/dce_clock_source.c
index d3b61b92ebec..31280d252753 100644
--- a/drivers/gpu/drm/amd/display/dc/dce/dce_clock_source.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_clock_source.c
@@ -1084,12 +1084,14 @@ static void get_ss_info_from_atombios(
 	if (*ss_entries_num == 0)
 		return;
 
-	ss_info = dm_alloc(sizeof(struct spread_spectrum_info) * (*ss_entries_num));
+	ss_info = kzalloc(sizeof(struct spread_spectrum_info) * (*ss_entries_num),
+			  GFP_KERNEL);
 	ss_info_cur = ss_info;
 	if (ss_info == NULL)
 		return;
 
-	ss_data = dm_alloc(sizeof(struct spread_spectrum_data) * (*ss_entries_num));
+	ss_data = kzalloc(sizeof(struct spread_spectrum_data) * (*ss_entries_num),
+			  GFP_KERNEL);
 	if (ss_data == NULL)
 		goto out_free_info;
 
@@ -1157,14 +1159,14 @@ static void get_ss_info_from_atombios(
 	}
 
 	*spread_spectrum_data = ss_data;
-	dm_free(ss_info);
+	kfree(ss_info);
 	return;
 
 out_free_data:
-	dm_free(ss_data);
+	kfree(ss_data);
 	*ss_entries_num = 0;
 out_free_info:
-	dm_free(ss_info);
+	kfree(ss_info);
 }
 
 static void ss_info_from_atombios_create(