[PATCH 4/6] drm/amd/display: unset initial value for tf since it's never used

[Melissa Wen]

In mod_color_calculate_{degamma/regamma}_params(), a tf variable is
initialized as TRANSFER_FUNCTION_SRGB but tf is only used after tf =
input->tf, therefore, better to just remove this initial value and avoid
misleading interpretations.

Signed-off-by: Melissa Wen <mwen at igalia.com>
---
 drivers/gpu/drm/amd/display/modules/color/color_gamma.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/modules/color/color_gamma.c b/drivers/gpu/drm/amd/display/modules/color/color_gamma.c
index fdb20dfc70c9..6e606b11286a 100644
--- a/drivers/gpu/drm/amd/display/modules/color/color_gamma.c
+++ b/drivers/gpu/drm/amd/display/modules/color/color_gamma.c
@@ -1883,7 +1883,7 @@ bool mod_color_calculate_degamma_params(struct dc_color_caps *dc_caps,
 	struct pwl_float_data_ex *curve = NULL;
 	struct gamma_pixel *axis_x = NULL;
 	struct pixel_gamma_point *coeff = NULL;
-	enum dc_transfer_func_predefined tf = TRANSFER_FUNCTION_SRGB;
+	enum dc_transfer_func_predefined tf;
 	uint32_t i;
 	bool ret = false;
 
@@ -2125,7 +2125,7 @@ bool mod_color_calculate_regamma_params(struct dc_transfer_func *output_tf,
 	struct pwl_float_data_ex *rgb_regamma = NULL;
 	struct gamma_pixel *axis_x = NULL;
 	struct pixel_gamma_point *coeff = NULL;
-	enum dc_transfer_func_predefined tf = TRANSFER_FUNCTION_SRGB;
+	enum dc_transfer_func_predefined tf;
 	bool do_clamping = true;
 	bool ret = false;
 
-- 
2.39.0