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drm/amd/display: Fix Coverity INTEGER_OVERFLOW within dal_gpio_service_create 

BugLink: https://bugs.launchpad.net/bugs/2081278

[ Upstream commit c6077aa66fa230d12f37fef01161ef080d13b726 ]

[Why]
For subtraction, coverity reports integer overflow
warning message when variable type is uint32_t.

[How]
Change variable type to int32_t.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Hersen Wu <hersenxs.wu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Koichiro Den <koichiro.den@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
This commit is contained in:
Hersen Wu 2024-04-26 11:58:11 -04:00 committed by Stefan Bader
parent 3d25e0380a
commit 8a43fca50a
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/amd/display/dc/gpio/gpio_service.c
View File

@ -58,7 +58,7 @@ struct gpio_service *dal_gpio_service_create(
struct dc_context *ctx)
{
struct gpio_service *service;
uint32_t index_of_id;
int32_t index_of_id;
service = kzalloc(sizeof(struct gpio_service), GFP_KERNEL);
@ -114,7 +114,7 @@ struct gpio_service *dal_gpio_service_create(
return service;
failure_2:
while (index_of_id) {
while (index_of_id > 0) {
--index_of_id;
kfree(service->busyness[index_of_id]);
}