This replaces calls to kmalloc followed by memcpy with a single call to kmemdup. This was found via make coccicheck.
Signed-off-by: Silviu-Mihai Popescu <[email protected]> --- fs/cifs/cifs_spnego.c | 3 +-- fs/cifs/cifsacl.c | 3 +-- fs/cifs/cifssmb.c | 3 +-- fs/cifs/sess.c | 8 ++++---- 4 files changed, 7 insertions(+), 10 deletions(-) diff --git a/fs/cifs/cifs_spnego.c b/fs/cifs/cifs_spnego.c index 10e7747..b7ae3cb 100644 --- a/fs/cifs/cifs_spnego.c +++ b/fs/cifs/cifs_spnego.c @@ -37,12 +37,11 @@ cifs_spnego_key_instantiate(struct key *key, struct key_preparsed_payload *prep) int ret; ret = -ENOMEM; - payload = kmalloc(prep->datalen, GFP_KERNEL); + payload = kmemdup(prep->data, prep->datalen, GFP_KERNEL); if (!payload) goto error; /* attach the data */ - memcpy(payload, prep->data, prep->datalen); key->payload.data = payload; ret = 0; diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c index f1e3f25..0bba930 100644 --- a/fs/cifs/cifsacl.c +++ b/fs/cifs/cifsacl.c @@ -63,11 +63,10 @@ cifs_idmap_key_instantiate(struct key *key, struct key_preparsed_payload *prep) key->datalen = prep->datalen; return 0; } - payload = kmalloc(prep->datalen, GFP_KERNEL); + payload = kmemdup(prep->data, prep->datalen, GFP_KERNEL); if (!payload) return -ENOMEM; - memcpy(payload, prep->data, prep->datalen); key->payload.data = payload; key->datalen = prep->datalen; return 0; diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index 7353bc5..d900bf0 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -3742,12 +3742,11 @@ CIFSSMBGetCIFSACL(const unsigned int xid, struct cifs_tcon *tcon, __u16 fid, rc = -EINVAL; *pbuflen = 0; } else { - *acl_inf = kmalloc(*pbuflen, GFP_KERNEL); + *acl_inf = kmemdup(pdata, *pbuflen, GFP_KERNEL); if (*acl_inf == NULL) { *pbuflen = 0; rc = -ENOMEM; } - memcpy(*acl_inf, pdata, *pbuflen); } } qsec_out: diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c index 76809f4..6f83881 100644 --- a/fs/cifs/sess.c +++ b/fs/cifs/sess.c @@ -399,12 +399,12 @@ int decode_ntlmssp_challenge(char *bcc_ptr, int blob_len, return -EINVAL; } if (tilen) { - ses->auth_key.response = kmalloc(tilen, GFP_KERNEL); + ses->auth_key.response = kmemdup(bcc_ptr + tioffset, tilen, + GFP_KERNEL); if (!ses->auth_key.response) { cERROR(1, "Challenge target info allocation failure"); return -ENOMEM; } - memcpy(ses->auth_key.response, bcc_ptr + tioffset, tilen); ses->auth_key.len = tilen; } @@ -761,14 +761,14 @@ ssetup_ntlmssp_authenticate: goto ssetup_exit; } - ses->auth_key.response = kmalloc(msg->sesskey_len, GFP_KERNEL); + ses->auth_key.response = kmemdup(msg->data, msg->sesskey_len, + GFP_KERNEL); if (!ses->auth_key.response) { cERROR(1, "Kerberos can't allocate (%u bytes) memory", msg->sesskey_len); rc = -ENOMEM; goto ssetup_exit; } - memcpy(ses->auth_key.response, msg->data, msg->sesskey_len); ses->auth_key.len = msg->sesskey_len; pSMB->req.hdr.Flags2 |= SMBFLG2_EXT_SEC; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
