linux-kernel - [PATCH 4/5] powerpc/4xx: Improve a size determination in two functions

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Date:   Thu, 11 Jan 2018 19:03:53 +0100
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     linuxppc-dev@...ts.ozlabs.org,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Paul Mackerras <paulus@...ba.org>,
        Rob Herring <robh@...nel.org>,
        Tyrel Datwyler <tyreld@...ux.vnet.ibm.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH 4/5] powerpc/4xx: Improve a size determination in two
 functions

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Thu, 11 Jan 2018 18:32:33 +0100

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.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 arch/powerpc/platforms/4xx/msi.c | 2 +-
 arch/powerpc/platforms/4xx/ocm.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/platforms/4xx/msi.c b/arch/powerpc/platforms/4xx/msi.c
index d16b81303cb0..f693cab07752 100644
--- a/arch/powerpc/platforms/4xx/msi.c
+++ b/arch/powerpc/platforms/4xx/msi.c
@@ -223,7 +223,7 @@ static int ppc4xx_msi_probe(struct platform_device *dev)
 
 	dev_dbg(&dev->dev, "PCIE-MSI: Setting up MSI support...\n");
 
-	msi = kzalloc(sizeof(struct ppc4xx_msi), GFP_KERNEL);
+	msi = kzalloc(sizeof(*msi), GFP_KERNEL);
 	if (!msi)
 		return -ENOMEM;
 
diff --git a/arch/powerpc/platforms/4xx/ocm.c b/arch/powerpc/platforms/4xx/ocm.c
index 5a750d0ad446..11418f090bf4 100644
--- a/arch/powerpc/platforms/4xx/ocm.c
+++ b/arch/powerpc/platforms/4xx/ocm.c
@@ -335,7 +335,7 @@ void *ppc4xx_ocm_alloc(phys_addr_t *phys, int size, int align,
 		if (IS_ERR_VALUE(offset))
 			continue;
 
-		ocm_blk = kzalloc(sizeof(struct ocm_block), GFP_KERNEL);
+		ocm_blk = kzalloc(sizeof(*ocm_blk), GFP_KERNEL);
 		if (!ocm_blk) {
 			rh_free(ocm_reg->rh, offset);
 			break;
-- 
2.15.1