| Message ID | 20220331173358.40939-3-michalorzel.eng@gmail.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | None | expand |
On Thu, Mar 31, 2022 at 07:33:56PM +0200, Michal Orzel wrote: > Get rid of redundant assignments which end up in values not being > read either because they are overwritten or the function ends. > > Reported by clang-tidy [deadcode.DeadStores] > > Signed-off-by: Michal Orzel <michalorzel.eng@gmail.com> > --- > security/keys/process_keys.c | 1 - > security/keys/request_key.c | 6 ++---- > 2 files changed, 2 insertions(+), 5 deletions(-) > > diff --git a/security/keys/process_keys.c b/security/keys/process_keys.c > index b5d5333ab330..8bdd6410f79a 100644 > --- a/security/keys/process_keys.c > +++ b/security/keys/process_keys.c > @@ -92,7 +92,6 @@ int look_up_user_keyrings(struct key **_user_keyring, > return PTR_ERR(reg_keyring); > > down_write(&user_ns->keyring_sem); > - ret = 0; > > /* Get the user keyring. Note that there may be one in existence > * already as it may have been pinned by a session, but the user_struct > diff --git a/security/keys/request_key.c b/security/keys/request_key.c > index 2da4404276f0..ad29023c9518 100644 > --- a/security/keys/request_key.c > +++ b/security/keys/request_key.c > @@ -116,7 +116,7 @@ static int call_sbin_request_key(struct key *authkey, void *aux) > { > static char const request_key[] = "/sbin/request-key"; > struct request_key_auth *rka = get_request_key_auth(authkey); > - const struct cred *cred = current_cred(); > + const struct cred *cred; > key_serial_t prkey, sskey; > struct key *key = rka->target_key, *keyring, *session, *user_session; > char *argv[9], *envp[3], uid_str[12], gid_str[12]; > @@ -506,9 +506,7 @@ static struct key *construct_key_and_link(struct keyring_search_context *ctx, > kdebug("cons failed"); > goto construction_failed; > } > - } else if (ret == -EINPROGRESS) { > - ret = 0; > - } else { > + } else if (ret != -EINPROGRESS) { > goto error_put_dest_keyring; > } > > -- > 2.25.1 > Acked-by: Jarkko Sakkinen <jarkko@kernel.org> David: can you pick this? BR, Jarkko
diff --git a/security/keys/process_keys.c b/security/keys/process_keys.c index b5d5333ab330..8bdd6410f79a 100644 --- a/security/keys/process_keys.c +++ b/security/keys/process_keys.c @@ -92,7 +92,6 @@ int look_up_user_keyrings(struct key **_user_keyring, return PTR_ERR(reg_keyring); down_write(&user_ns->keyring_sem); - ret = 0; /* Get the user keyring. Note that there may be one in existence * already as it may have been pinned by a session, but the user_struct diff --git a/security/keys/request_key.c b/security/keys/request_key.c index 2da4404276f0..ad29023c9518 100644 --- a/security/keys/request_key.c +++ b/security/keys/request_key.c @@ -116,7 +116,7 @@ static int call_sbin_request_key(struct key *authkey, void *aux) { static char const request_key[] = "/sbin/request-key"; struct request_key_auth *rka = get_request_key_auth(authkey); - const struct cred *cred = current_cred(); + const struct cred *cred; key_serial_t prkey, sskey; struct key *key = rka->target_key, *keyring, *session, *user_session; char *argv[9], *envp[3], uid_str[12], gid_str[12]; @@ -506,9 +506,7 @@ static struct key *construct_key_and_link(struct keyring_search_context *ctx, kdebug("cons failed"); goto construction_failed; } - } else if (ret == -EINPROGRESS) { - ret = 0; - } else { + } else if (ret != -EINPROGRESS) { goto error_put_dest_keyring; }
Get rid of redundant assignments which end up in values not being read either because they are overwritten or the function ends. Reported by clang-tidy [deadcode.DeadStores] Signed-off-by: Michal Orzel <michalorzel.eng@gmail.com> --- security/keys/process_keys.c | 1 - security/keys/request_key.c | 6 ++---- 2 files changed, 2 insertions(+), 5 deletions(-)