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| author | David Howells <dhowells@redhat.com> | 2012-05-21 12:32:13 +0100 |
|---|---|---|
| committer | James Morris <james.l.morris@oracle.com> | 2012-05-25 20:51:42 +1000 |
| commit | 423b9788023263364ea5de04189f02bd9b6a12db (patch) | |
| tree | fc3ee4814aa8322fb2abb01c50d96568aa51bd9b /security/keys/compat.c | |
| parent | ff2bb047c4bce9742e94911eeb44b4d6ff4734ab (diff) | |
| download | linux-423b9788023263364ea5de04189f02bd9b6a12db.tar.gz linux-423b9788023263364ea5de04189f02bd9b6a12db.tar.bz2 linux-423b9788023263364ea5de04189f02bd9b6a12db.zip | |
KEYS: Fix some sparse warnings
Fix some sparse warnings in the keyrings code:
(1) compat_keyctl_instantiate_key_iov() should be static.
(2) There were a couple of places where a pointer was being compared against
integer 0 rather than NULL.
(3) keyctl_instantiate_key_common() should not take a __user-labelled iovec
pointer as the caller must have copied the iovec to kernel space.
(4) __key_link_begin() takes and __key_link_end() releases
keyring_serialise_link_sem under some circumstances and so this should be
declared.
Note that adding __acquires() and __releases() for this doesn't help cure
the warnings messages - something only commenting out both helps.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
Diffstat (limited to 'security/keys/compat.c')
| -rw-r--r-- | security/keys/compat.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/security/keys/compat.c b/security/keys/compat.c index fab4f8dda6c6..e35ae1d208a8 100644 --- a/security/keys/compat.c +++ b/security/keys/compat.c @@ -24,7 +24,7 @@ * * If successful, 0 will be returned. */ -long compat_keyctl_instantiate_key_iov( +static long compat_keyctl_instantiate_key_iov( key_serial_t id, const struct compat_iovec __user *_payload_iov, unsigned ioc, @@ -33,7 +33,7 @@ long compat_keyctl_instantiate_key_iov( struct iovec iovstack[UIO_FASTIOV], *iov = iovstack; long ret; - if (_payload_iov == 0 || ioc == 0) + if (!_payload_iov || !ioc) goto no_payload; ret = compat_rw_copy_check_uvector(WRITE, _payload_iov, ioc, |