Re: [PATCH] crypto: lib/mpi - Fix an "Uninitialized scalar variable" issue
From: Herbert Xu
Date: Sat Oct 05 2024 - 01:31:42 EST
On Sat, Sep 14, 2024 at 08:53:30AM +0800, Qianqiang Liu wrote:
> On Fri, Sep 13, 2024 at 10:07:42PM +0800, Qianqiang Liu wrote:
> > The "err" variable may be returned without an initialized value.
> >
> > Fixes: 8e3a67f2de87 ("crypto: lib/mpi - Add error checks to extension")
> > Signed-off-by: Qianqiang Liu <qianqiang.liu@xxxxxxx>
> > ---
> > lib/crypto/mpi/mpi-mul.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/lib/crypto/mpi/mpi-mul.c b/lib/crypto/mpi/mpi-mul.c
> > index 892a246216b9..7e6ff1ce3e9b 100644
> > --- a/lib/crypto/mpi/mpi-mul.c
> > +++ b/lib/crypto/mpi/mpi-mul.c
> > @@ -21,7 +21,7 @@ int mpi_mul(MPI w, MPI u, MPI v)
> > int usign, vsign, sign_product;
> > int assign_wp = 0;
> > mpi_ptr_t tmp_limb = NULL;
> > - int err;
> > + int err = 0;
> >
> > if (u->nlimbs < v->nlimbs) {
> > /* Swap U and V. */
> > --
> > 2.34.1
>
> Could you please review this patch?
Patch applied. Thanks.
--
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
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