diff mbox series

ubifs: Use kmalloc_array()

Message ID 20180702214713.2769-1-richard@nod.at
State Accepted
Delegated to: Richard Weinberger
Headers show
Series ubifs: Use kmalloc_array() | expand

Commit Message

Richard Weinberger July 2, 2018, 9:47 p.m. UTC
Since commit 6da2ec56059c ("treewide: kmalloc() -> kmalloc_array()")
we use kmalloc_array() for kmalloc() that computes the length with
a multiplication.

Cc: Kees Cook <keescook@chromium.org>
Suggested-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
---
 fs/ubifs/journal.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Kees Cook July 2, 2018, 9:48 p.m. UTC | #1
On Mon, Jul 2, 2018 at 2:47 PM, Richard Weinberger <richard@nod.at> wrote:
> Since commit 6da2ec56059c ("treewide: kmalloc() -> kmalloc_array()")
> we use kmalloc_array() for kmalloc() that computes the length with
> a multiplication.
>
> Cc: Kees Cook <keescook@chromium.org>
> Suggested-by: Kees Cook <keescook@chromium.org>
> Signed-off-by: Richard Weinberger <richard@nod.at>

Reviewed-by: Kees Cook <keescook@chromium.org>

Thanks!

-Kees

> ---
>  fs/ubifs/journal.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/fs/ubifs/journal.c b/fs/ubifs/journal.c
> index eea12d25a58b..95acc0c04bca 100644
> --- a/fs/ubifs/journal.c
> +++ b/fs/ubifs/journal.c
> @@ -1285,7 +1285,7 @@ static int truncate_data_node(const struct ubifs_info *c, const struct inode *in
>         int err, dlen, compr_type, out_len, old_dlen;
>
>         out_len = le32_to_cpu(dn->size);
> -       buf = kmalloc(out_len * WORST_COMPR_FACTOR, GFP_NOFS);
> +       buf = kmalloc_array(out_len, WORST_COMPR_FACTOR, GFP_NOFS);
>         if (!buf)
>                 return -ENOMEM;
>
> --
> 2.18.0
>
diff mbox series

Patch

diff --git a/fs/ubifs/journal.c b/fs/ubifs/journal.c
index eea12d25a58b..95acc0c04bca 100644
--- a/fs/ubifs/journal.c
+++ b/fs/ubifs/journal.c
@@ -1285,7 +1285,7 @@  static int truncate_data_node(const struct ubifs_info *c, const struct inode *in
 	int err, dlen, compr_type, out_len, old_dlen;
 
 	out_len = le32_to_cpu(dn->size);
-	buf = kmalloc(out_len * WORST_COMPR_FACTOR, GFP_NOFS);
+	buf = kmalloc_array(out_len, WORST_COMPR_FACTOR, GFP_NOFS);
 	if (!buf)
 		return -ENOMEM;