2020-07-01 13:49:14

by Colin King

Subject: [PATCH] integrity: remove redundant initialization of variable ret

From: Colin Ian King <[email protected]>

The variable ret is being initialized with a value that is never read
and it is being updated later with a new value. The initialization is
redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <[email protected]>
---
security/integrity/digsig_asymmetric.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/security/integrity/digsig_asymmetric.c b/security/integrity/digsig_asymmetric.c
index 4e0d6778277e..cfa4127d0518 100644
--- a/security/integrity/digsig_asymmetric.c
+++ b/security/integrity/digsig_asymmetric.c
@@ -79,7 +79,7 @@ int asymmetric_verify(struct key *keyring, const char *sig,
struct public_key_signature pks;
struct signature_v2_hdr *hdr = (struct signature_v2_hdr *)sig;
struct key *key;
- int ret = -ENOMEM;
+ int ret;

if (siglen <= sizeof(*hdr))
return -EBADMSG;
--
2.27.0

2020-07-27 19:09:36

by James Morris

Subject: Re: [PATCH] integrity: remove redundant initialization of variable ret

On Wed, 1 Jul 2020, Colin King wrote:

> From: Colin Ian King <[email protected]>
>
> The variable ret is being initialized with a value that is never read
> and it is being updated later with a new value. The initialization is
> redundant and can be removed.
>
> Addresses-Coverity: ("Unused value")
> Signed-off-by: Colin Ian King <[email protected]>
> ---
> security/integrity/digsig_asymmetric.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/security/integrity/digsig_asymmetric.c b/security/integrity/digsig_asymmetric.c
> index 4e0d6778277e..cfa4127d0518 100644
> --- a/security/integrity/digsig_asymmetric.c
> +++ b/security/integrity/digsig_asymmetric.c
> @@ -79,7 +79,7 @@ int asymmetric_verify(struct key *keyring, const char *sig,
> struct public_key_signature pks;
> struct signature_v2_hdr *hdr = (struct signature_v2_hdr *)sig;
> struct key *key;
> - int ret = -ENOMEM;
> + int ret;

Assuming Mimi will grab this.


Acked-by: James Morris <[email protected]>

--
James Morris
<[email protected]>

2020-07-27 20:59:10

by Mimi Zohar

Subject: Re: [PATCH] integrity: remove redundant initialization of variable ret

On Tue, 2020-07-28 at 04:05 +1000, James Morris wrote:
> On Wed, 1 Jul 2020, Colin King wrote:
>
> > From: Colin Ian King <[email protected]>
> >
> > The variable ret is being initialized with a value that is never read
> > and it is being updated later with a new value. The initialization is
> > redundant and can be removed.
> >
> > Addresses-Coverity: ("Unused value")
> > Signed-off-by: Colin Ian King <[email protected]>
> > ---
> > security/integrity/digsig_asymmetric.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/security/integrity/digsig_asymmetric.c b/security/integrity/digsig_asymmetric.c
> > index 4e0d6778277e..cfa4127d0518 100644
> > --- a/security/integrity/digsig_asymmetric.c
> > +++ b/security/integrity/digsig_asymmetric.c
> > @@ -79,7 +79,7 @@ int asymmetric_verify(struct key *keyring, const char *sig,
> > struct public_key_signature pks;
> > struct signature_v2_hdr *hdr = (struct signature_v2_hdr *)sig;
> > struct key *key;
> > - int ret = -ENOMEM;
> > + int ret;
>
> Assuming Mimi will grab this.
>
>
> Acked-by: James Morris <[email protected]>

Yes, thank you for the reminder.

Mimi