From: Markus Elfring <elfr...@users.sourceforge.net>
Date: Sun, 20 Aug 2017 15:40:55 +0200

Replace the specification of data structures by pointer dereferences
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfr...@users.sourceforge.net>
---
 fs/cifs/cifsacl.c  |  8 ++++----
 fs/cifs/cifsfs.c   |  2 +-
 fs/cifs/cifssmb.c  |  4 +---
 fs/cifs/dir.c      |  4 ++--
 fs/cifs/ioctl.c    |  2 +-
 fs/cifs/readdir.c  |  2 +-
 fs/cifs/sess.c     |  2 +-
 fs/cifs/smb1ops.c  |  2 +-
 fs/cifs/smb2file.c |  4 ++--
 fs/cifs/smb2misc.c |  2 +-
 fs/cifs/smb2ops.c  | 20 +++++++++-----------
 fs/cifs/smb2pdu.c  | 11 +++++------
 12 files changed, 29 insertions(+), 34 deletions(-)

diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c
index b98436f5c7c7..e92a2e70fdea 100644
--- a/fs/cifs/cifsacl.c
+++ b/fs/cifs/cifsacl.c
@@ -945,8 +945,8 @@ static int build_sec_desc(struct cifs_ntsd *pntsd, struct 
cifs_ntsd *pnntsd,
                        uid_t id;
                        owner_sid_ptr = (struct cifs_sid *)((char *)pnntsd +
                                        le32_to_cpu(pnntsd->osidoffset));
-                       nowner_sid_ptr = kmalloc(sizeof(struct cifs_sid),
-                                                               GFP_KERNEL);
+                       nowner_sid_ptr = kmalloc(sizeof(*nowner_sid_ptr),
+                                                GFP_KERNEL);
                        if (!nowner_sid_ptr)
                                return -ENOMEM;
                        id = from_kuid(&init_user_ns, uid);
@@ -965,8 +965,8 @@ static int build_sec_desc(struct cifs_ntsd *pntsd, struct 
cifs_ntsd *pnntsd,
                        gid_t id;
                        group_sid_ptr = (struct cifs_sid *)((char *)pnntsd +
                                        le32_to_cpu(pnntsd->gsidoffset));
-                       ngroup_sid_ptr = kmalloc(sizeof(struct cifs_sid),
-                                                               GFP_KERNEL);
+                       ngroup_sid_ptr = kmalloc(sizeof(*ngroup_sid_ptr),
+                                                GFP_KERNEL);
                        if (!ngroup_sid_ptr)
                                return -ENOMEM;
                        id = from_kgid(&init_user_ns, gid);
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 180b3356ff86..b5694ac68ef5 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -686,7 +686,7 @@ cifs_do_mount(struct file_system_type *fs_type,
        if (IS_ERR(volume_info))
                return ERR_CAST(volume_info);
 
-       cifs_sb = kzalloc(sizeof(struct cifs_sb_info), GFP_KERNEL);
+       cifs_sb = kzalloc(sizeof(*cifs_sb), GFP_KERNEL);
        if (cifs_sb == NULL) {
                root = ERR_PTR(-ENOMEM);
                goto out_nls;
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 118a63e7e221..8c61a1fd2bf8 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -6432,9 +6432,7 @@ int CIFSSMBNotify(const unsigned int xid, struct 
cifs_tcon *tcon,
        } else {
                /* Add file to outstanding requests */
                /* BB change to kmem cache alloc */
-               dnotify_req = kmalloc(
-                                               sizeof(struct dir_notify_req),
-                                                GFP_KERNEL);
+               dnotify_req = kmalloc(sizeof(*dnotify_req), GFP_KERNEL);
                if (dnotify_req) {
                        dnotify_req->Pid = pSMB->hdr.Pid;
                        dnotify_req->PidHigh = pSMB->hdr.PidHigh;
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index 56366e984076..7dd7ca1afe0b 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -339,7 +339,7 @@ cifs_do_create(struct inode *inode, struct dentry 
*direntry, unsigned int xid,
                goto out;
        }
 
-       buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL);
+       buf = kmalloc(sizeof(*buf), GFP_KERNEL);
        if (buf == NULL) {
                rc = -ENOMEM;
                goto out;
@@ -683,7 +683,7 @@ int cifs_mknod(struct inode *inode, struct dentry 
*direntry, umode_t mode,
 
        cifs_dbg(FYI, "sfu compat create special file\n");
 
-       buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL);
+       buf = kmalloc(sizeof(*buf), GFP_KERNEL);
        if (buf == NULL) {
                kfree(full_path);
                rc = -ENOMEM;
diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c
index 54f32f9143a9..140c49c128b3 100644
--- a/fs/cifs/ioctl.c
+++ b/fs/cifs/ioctl.c
@@ -89,7 +89,7 @@ static long smb_mnt_get_fsinfo(unsigned int xid, struct 
cifs_tcon *tcon,
        int rc = 0;
        struct smb_mnt_fs_info *fsinf;
 
-       fsinf = kzalloc(sizeof(struct smb_mnt_fs_info), GFP_KERNEL);
+       fsinf = kzalloc(sizeof(*fsinf), GFP_KERNEL);
        if (fsinf == NULL)
                return -ENOMEM;
 
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index a27fc8791551..a3cfb2e1cfcd 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -280,7 +280,7 @@ initiate_cifs_search(const unsigned int xid, struct file 
*file)
                if (IS_ERR(tlink))
                        return PTR_ERR(tlink);
 
-               cifsFile = kzalloc(sizeof(struct cifsFileInfo), GFP_KERNEL);
+               cifsFile = kzalloc(sizeof(*cifsFile), GFP_KERNEL);
                if (cifsFile == NULL) {
                        rc = -ENOMEM;
                        goto error_exit;
diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index 2fb36bbaf5b0..382f868279f6 100644
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -1446,7 +1446,7 @@ int CIFS_SessSetup(const unsigned int xid, struct 
cifs_ses *ses,
                return -EINVAL;
        }
 
-       sess_data = kzalloc(sizeof(struct sess_data), GFP_KERNEL);
+       sess_data = kzalloc(sizeof(*sess_data), GFP_KERNEL);
        if (!sess_data)
                return -ENOMEM;
 
diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c
index a723df3e0197..aad345a91ac9 100644
--- a/fs/cifs/smb1ops.c
+++ b/fs/cifs/smb1ops.c
@@ -525,7 +525,7 @@ cifs_is_path_accessible(const unsigned int xid, struct 
cifs_tcon *tcon,
        int rc;
        FILE_ALL_INFO *file_info;
 
-       file_info = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL);
+       file_info = kmalloc(sizeof(*file_info), GFP_KERNEL);
        if (file_info == NULL)
                return -ENOMEM;
 
diff --git a/fs/cifs/smb2file.c b/fs/cifs/smb2file.c
index b4b1f0305f29..21bff61cf818 100644
--- a/fs/cifs/smb2file.c
+++ b/fs/cifs/smb2file.c
@@ -131,7 +131,7 @@ smb2_unlock_range(struct cifsFileInfo *cfile, struct 
file_lock *flock,
                return -EINVAL;
 
        max_num = max_buf / sizeof(struct smb2_lock_element);
-       buf = kcalloc(max_num, sizeof(struct smb2_lock_element), GFP_KERNEL);
+       buf = kcalloc(max_num, sizeof(*buf), GFP_KERNEL);
        if (!buf)
                return -ENOMEM;
 
@@ -267,7 +267,7 @@ smb2_push_mandatory_locks(struct cifsFileInfo *cfile)
        }
 
        max_num = max_buf / sizeof(struct smb2_lock_element);
-       buf = kcalloc(max_num, sizeof(struct smb2_lock_element), GFP_KERNEL);
+       buf = kcalloc(max_num, sizeof(*buf), GFP_KERNEL);
        if (!buf) {
                free_xid(xid);
                return -ENOMEM;
diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c
index 7b08a1446a7f..6f0997a25ea8 100644
--- a/fs/cifs/smb2misc.c
+++ b/fs/cifs/smb2misc.c
@@ -537,7 +537,7 @@ smb2_is_valid_lease_break(char *buffer)
        struct cifs_tcon *tcon;
        struct smb2_lease_break_work *lw;
 
-       lw = kmalloc(sizeof(struct smb2_lease_break_work), GFP_KERNEL);
+       lw = kmalloc(sizeof(*lw), GFP_KERNEL);
        if (!lw)
                return false;
 
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 783b5d263704..fc3e598ac1c6 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -608,8 +608,7 @@ smb2_copychunk_range(const unsigned int xid,
        bool chunk_sizes_updated = false;
        ssize_t bytes_written, total_bytes_written = 0;
 
-       pcchunk = kmalloc(sizeof(struct copychunk_ioctl), GFP_KERNEL);
-
+       pcchunk = kmalloc(sizeof(*pcchunk), GFP_KERNEL);
        if (pcchunk == NULL)
                return -ENOMEM;
 
@@ -1750,7 +1749,7 @@ smb2_create_lease_buf(u8 *lease_key, u8 oplock)
 {
        struct create_lease *buf;
 
-       buf = kzalloc(sizeof(struct create_lease), GFP_KERNEL);
+       buf = kzalloc(sizeof(*buf), GFP_KERNEL);
        if (!buf)
                return NULL;
 
@@ -1777,7 +1776,7 @@ smb3_create_lease_buf(u8 *lease_key, u8 oplock)
 {
        struct create_lease_v2 *buf;
 
-       buf = kzalloc(sizeof(struct create_lease_v2), GFP_KERNEL);
+       buf = kzalloc(sizeof(*buf), GFP_KERNEL);
        if (!buf)
                return NULL;
 
@@ -1860,7 +1859,7 @@ init_sg(struct smb_rqst *rqst, u8 *sign)
        unsigned int i;
        unsigned int j;
 
-       sg = kmalloc_array(sg_len, sizeof(struct scatterlist), GFP_KERNEL);
+       sg = kmalloc_array(sg_len, sizeof(*sg), GFP_KERNEL);
        if (!sg)
                return NULL;
 
@@ -2029,7 +2028,7 @@ smb3_init_transform_rq(struct TCP_Server_Info *server, 
struct smb_rqst *new_rq,
        int i;
        int rc = -ENOMEM;
 
-       pages = kmalloc_array(npages, sizeof(struct page *), GFP_KERNEL);
+       pages = kmalloc_array(npages, sizeof(*pages), GFP_KERNEL);
        if (!pages)
                return rc;
 
@@ -2044,7 +2043,7 @@ smb3_init_transform_rq(struct TCP_Server_Info *server, 
struct smb_rqst *new_rq,
                        goto err_free_pages;
        }
 
-       iov = kmalloc_array(old_rq->rq_nvec, sizeof(struct kvec), GFP_KERNEL);
+       iov = kmalloc_array(old_rq->rq_nvec, sizeof(*iov), GFP_KERNEL);
        if (!iov)
                goto err_free_pages;
 
@@ -2054,7 +2053,7 @@ smb3_init_transform_rq(struct TCP_Server_Info *server, 
struct smb_rqst *new_rq,
        new_rq->rq_iov = iov;
        new_rq->rq_nvec = old_rq->rq_nvec;
 
-       tr_hdr = kmalloc(sizeof(struct smb2_transform_hdr), GFP_KERNEL);
+       tr_hdr = kmalloc(sizeof(*tr_hdr), GFP_KERNEL);
        if (!tr_hdr)
                goto err_free_iov;
 
@@ -2185,7 +2184,7 @@ init_read_bvec(struct page **pages, unsigned int npages, 
unsigned int data_size,
        struct bio_vec *bvec;
        int i;
 
-       bvec = kcalloc(npages, sizeof(struct bio_vec), GFP_KERNEL);
+       bvec = kcalloc(npages, sizeof(*bvec), GFP_KERNEL);
        if (!bvec)
                return -ENOMEM;
 
@@ -2355,8 +2354,7 @@ receive_encrypted_read(struct TCP_Server_Info *server, 
struct mid_q_entry **mid)
        len = le32_to_cpu(tr_hdr->OriginalMessageSize) + 4 -
                                                server->vals->read_rsp_size;
        npages = DIV_ROUND_UP(len, PAGE_SIZE);
-
-       pages = kmalloc_array(npages, sizeof(struct page *), GFP_KERNEL);
+       pages = kmalloc_array(npages, sizeof(*pages), GFP_KERNEL);
        if (!pages) {
                rc = -ENOMEM;
                goto discard_data;
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 668732e6f80f..328fefeaf924 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -1075,7 +1075,7 @@ SMB2_sess_setup(const unsigned int xid, struct cifs_ses 
*ses,
                return -EIO;
        }
 
-       sess_data = kzalloc(sizeof(struct SMB2_sess_data), GFP_KERNEL);
+       sess_data = kzalloc(sizeof(*sess_data), GFP_KERNEL);
        if (!sess_data)
                return -ENOMEM;
 
@@ -1320,7 +1320,7 @@ create_durable_buf(void)
 {
        struct create_durable *buf;
 
-       buf = kzalloc(sizeof(struct create_durable), GFP_KERNEL);
+       buf = kzalloc(sizeof(*buf), GFP_KERNEL);
        if (!buf)
                return NULL;
 
@@ -1343,7 +1343,7 @@ create_reconnect_durable_buf(struct cifs_fid *fid)
 {
        struct create_durable *buf;
 
-       buf = kzalloc(sizeof(struct create_durable), GFP_KERNEL);
+       buf = kzalloc(sizeof(*buf), GFP_KERNEL);
        if (!buf)
                return NULL;
 
@@ -1420,7 +1420,7 @@ create_durable_v2_buf(struct cifs_fid *pfid)
 {
        struct create_durable_v2 *buf;
 
-       buf = kzalloc(sizeof(struct create_durable_v2), GFP_KERNEL);
+       buf = kzalloc(sizeof(*buf), GFP_KERNEL);
        if (!buf)
                return NULL;
 
@@ -1449,8 +1449,7 @@ create_reconnect_durable_v2_buf(struct cifs_fid *fid)
 {
        struct create_durable_handle_reconnect_v2 *buf;
 
-       buf = kzalloc(sizeof(struct create_durable_handle_reconnect_v2),
-                       GFP_KERNEL);
+       buf = kzalloc(sizeof(*buf), GFP_KERNEL);
        if (!buf)
                return NULL;
 
-- 
2.14.0

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