Message ID | ZcszqPoW8RMaOvTN@nixos |
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R. Silva" <gustavoars@kernel.org> Cc: ntfs3@lists.linux.dev, linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org Subject: [PATCH v2] fs/ntfs3: use kcalloc() instead of kzalloc() Message-ID: <ZcszqPoW8RMaOvTN@nixos> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: <linux-kernel.vger.kernel.org> List-Subscribe: <mailto:linux-kernel+subscribe@vger.kernel.org> List-Unsubscribe: <mailto:linux-kernel+unsubscribe@vger.kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1790774731913930195 X-GMAIL-MSGID: 1790774731913930195 |
Series |
[v2] fs/ntfs3: use kcalloc() instead of kzalloc()
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Commit Message
Lenko Donchev
Feb. 13, 2024, 9:17 a.m. UTC
We are trying to get rid of all multiplications from allocation
functions to prevent integer overflows[1]. Here the multiplication is
obviously safe, but using kcalloc() is more appropriate and improves
readability. This patch has no effect on runtime behavior.
Link: https://github.com/KSPP/linux/issues/162 [1]
Link: https://www.kernel.org/doc/html/next/process/deprecated.html#open-coded-arithmetic-in-allocator-arguments [2]
Signed-off-by: Lenko Donchev <lenko.donchev@gmail.com>
---
Changes in v2:
- Use sizeof on actual pointer.
---
fs/ntfs3/frecord.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/ntfs3/frecord.c b/fs/ntfs3/frecord.c index d435446537ca..725aa84dbd22 100644 --- a/fs/ntfs3/frecord.c +++ b/fs/ntfs3/frecord.c @@ -2636,7 +2636,7 @@ int ni_read_frame(struct ntfs_inode *ni, u64 frame_vbo, struct page **pages, goto out1; } - pages_disk = kzalloc(npages_disk, sizeof(struct page *), GFP_NOFS); + pages_disk = kcalloc(npages_disk, sizeof(*pages_disk), GFP_NOFS); if (!pages_disk) { err = -ENOMEM; goto out2;