linux-kernel - [PATCH 2/5] drm/amdgpu: Improve determination of sizes in two functions

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Date:   Sun, 18 Sep 2016 18:51:12 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     dri-devel@...ts.freedesktop.org,
        Alex Deucher <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        Chunming Zhou <David1.Zhou@....com>,
        David Airlie <airlied@...ux.ie>, Monk Liu <Monk.Liu@....com>,
        Tom St Denis <tom.stdenis@....com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org,
        Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH 2/5] drm/amdgpu: Improve determination of sizes in two
 functions

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sun, 18 Sep 2016 17:24:47 +0200

Replace the specification of data structures by pointer dereferences
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 2709ebd..96a2457 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -855,7 +855,7 @@ static void amdgpu_atombios_fini(struct amdgpu_device *adev)
 static int amdgpu_atombios_init(struct amdgpu_device *adev)
 {
 	struct card_info *atom_card_info =
-	    kzalloc(sizeof(struct card_info), GFP_KERNEL);
+	    kzalloc(sizeof(*atom_card_info), GFP_KERNEL);
 
 	if (!atom_card_info)
 		return -ENOMEM;
@@ -1224,7 +1224,8 @@ static int amdgpu_early_init(struct amdgpu_device *adev)
 	}
 
 	adev->ip_block_status = kcalloc(adev->num_ip_blocks,
-					sizeof(struct amdgpu_ip_block_status), GFP_KERNEL);
+					sizeof(*adev->ip_block_status),
+					GFP_KERNEL);
 	if (adev->ip_block_status == NULL)
 		return -ENOMEM;
 
-- 
2.10.0