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From bea846ec51341d4256c2cc400aa7dc1d619863f9 Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@chromium.org>
Date: Wed, 4 Jul 2018 10:27:30 -0700
Subject: [PATCH 5381/5725] drm/amd/display: Use 2-factor allocator calls
As already done treewide, switch from open-coded multiplication to
2-factor allocation helper.
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Raveendra Talabattula <raveendra.talabattula@amd.com>
---
drivers/gpu/drm/amd/display/modules/color/color_gamma.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 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 e130aac..0fe9882 100644
--- a/drivers/gpu/drm/amd/display/modules/color/color_gamma.c
+++ b/drivers/gpu/drm/amd/display/modules/color/color_gamma.c
@@ -32,6 +32,8 @@
#define NUM_REGIONS 32
#define MAX_HW_POINTS (NUM_PTS_IN_REGION*NUM_REGIONS)
+#define kvcalloc(n, size, gfp) kvzalloc(((n)*(size)), gfp)
+
static struct hw_x_point coordinates_x[MAX_HW_POINTS + 2];
static struct fixed31_32 pq_table[MAX_HW_POINTS + 2];
@@ -1721,8 +1723,8 @@ bool mod_color_calculate_curve(enum dc_transfer_func_predefined trans,
kvfree(rgb_regamma);
} else if (trans == TRANSFER_FUNCTION_HLG ||
trans == TRANSFER_FUNCTION_HLG12) {
- rgb_regamma = kvzalloc(sizeof(*rgb_regamma) *
- (MAX_HW_POINTS + _EXTRA_POINTS),
+ rgb_regamma = kvcalloc(MAX_HW_POINTS + _EXTRA_POINTS,
+ sizeof(*rgb_regamma),
GFP_KERNEL);
if (!rgb_regamma)
goto rgb_regamma_alloc_fail;
@@ -1800,8 +1802,8 @@ bool mod_color_calculate_degamma_curve(enum dc_transfer_func_predefined trans,
kvfree(rgb_degamma);
} else if (trans == TRANSFER_FUNCTION_HLG ||
trans == TRANSFER_FUNCTION_HLG12) {
- rgb_degamma = kvzalloc(sizeof(*rgb_degamma) *
- (MAX_HW_POINTS + _EXTRA_POINTS),
+ rgb_degamma = kvcalloc(MAX_HW_POINTS + _EXTRA_POINTS,
+ sizeof(*rgb_degamma),
GFP_KERNEL);
if (!rgb_degamma)
goto rgb_degamma_alloc_fail;
--
2.7.4
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