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From: Felix Schlepper <f3sch.git@outlook.com>
To: gregkh@linuxfoundation.org
Cc: linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org,
	Felix Schlepper <f3sch.git@outlook.com>
Subject: [PATCH v5 1/3] Staging: rtl8192e: Use struct_size
Date: Fri, 24 Jun 2022 15:54:53 +0200	[thread overview]
Message-ID: <54ea62a2b7628d3bdd5aa52df82c3e91704a2127.1656078068.git.f3sch.git@outlook.com> (raw)
In-Reply-To: <cover.1656078068.git.f3sch.git@outlook.com>

Using struct_size is encouraged because it is safer
than using sizeof and calculations by hand.

Signed-off-by: Felix Schlepper <f3sch.git@outlook.com>
---
 drivers/staging/rtl8192e/rtllib_tx.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/rtl8192e/rtllib_tx.c b/drivers/staging/rtl8192e/rtllib_tx.c
index 37715afb0210..f2ef32e943ae 100644
--- a/drivers/staging/rtl8192e/rtllib_tx.c
+++ b/drivers/staging/rtl8192e/rtllib_tx.c
@@ -205,8 +205,7 @@ static struct rtllib_txb *rtllib_alloc_txb(int nr_frags, int txb_size,
 	struct rtllib_txb *txb;
 	int i;
 
-	txb = kmalloc(sizeof(struct rtllib_txb) + (sizeof(u8 *) * nr_frags),
-		      gfp_mask);
+	txb = kmalloc(struct_size(txb, fragments, nr_frags), gfp_mask);
 	if (!txb)
 		return NULL;
 
-- 
2.36.1


  reply	other threads:[~2022-06-24 13:55 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-24 13:54 [PATCH v5 0/3] Staging: rtl8192e: Safer allocation and cleaner error handling Felix Schlepper
2022-06-24 13:54 ` Felix Schlepper [this message]
2022-06-24 13:54 ` [PATCH v5 2/3] Staging: rtl8192e: Using kzalloc and delete memset Felix Schlepper
2022-06-24 13:54 ` [PATCH v5 3/3] Staging: rtl8192e: Cleaning up error handling Felix Schlepper

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