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Thu, 23 Apr 2026 00:09:26 -0700 (PDT) Received: from localhost ([172.216.252.33]) by smtp.gmail.com with ESMTPSA id 956f58d0204a3-65314e328d6sm8799738d50.11.2026.04.23.00.09.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 23 Apr 2026 00:09:26 -0700 (PDT) Date: Thu, 23 Apr 2026 10:09:20 +0300 From: Dan Carpenter To: Harry Wentland Cc: Leo Li , Rodrigo Siqueira , Alex Deucher , Christian =?iso-8859-1?Q?K=F6nig?= , David Airlie , Simona Vetter , Chenyu Chen , Ray Wu , amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org Subject: [PATCH] drm/amd/display: Clean up allocation in initialize_backlight_caps() Message-ID: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Mailer: git-send-email haha only kidding Just a small cleanup: 1) Remove unnecessary initialization. 2) Use the new kzalloc_obj() macro. 3) Reformat the NULL check to make checkpatch happy. 4) Remove the unnecessary NULL check before kfree() since the pointer is not NULL and anyway kfree() accepts NULL pointers. Signed-off-by: Dan Carpenter --- drivers/gpu/drm/amd/display/modules/power/power.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/amd/display/modules/power/power.c b/drivers/gpu/drm/amd/display/modules/power/power.c index 6c73fecf57d5..68b5b3b967be 100644 --- a/drivers/gpu/drm/amd/display/modules/power/power.c +++ b/drivers/gpu/drm/amd/display/modules/power/power.c @@ -470,7 +470,7 @@ static bool validate_ext_backlight_caps( static void initialize_backlight_caps(struct core_power *core_power, unsigned int inst) { unsigned int i; - struct dm_acpi_atif_backlight_caps *ext_backlight_caps = NULL; + struct dm_acpi_atif_backlight_caps *ext_backlight_caps; bool custom_curve_present = false; unsigned int num_levels = 0; struct dc *dc = NULL; @@ -486,11 +486,8 @@ static void initialize_backlight_caps(struct core_power *core_power, unsigned in /* Allocate memory for ATIF output * (do not want to use 256 bytes on the stack) */ - ext_backlight_caps = (struct dm_acpi_atif_backlight_caps *) - (kzalloc(sizeof(struct dm_acpi_atif_backlight_caps), - GFP_KERNEL)); - - if (ext_backlight_caps == NULL) + ext_backlight_caps = kzalloc_obj(*ext_backlight_caps); + if (!ext_backlight_caps) return; /* Retrieve ACPI extended brightness caps */ @@ -611,8 +608,7 @@ static void initialize_backlight_caps(struct core_power *core_power, unsigned in } } - if (ext_backlight_caps != NULL) - kfree(ext_backlight_caps); + kfree(ext_backlight_caps); /* Successfully initialized */ core_power->bl_prop[inst].backlight_caps_valid = true; -- 2.53.0