mac80211: fix a crash in minstrel_ht in HT mode with no supported MCS rates

[~andy/linux] / fs / cifs / file.c

diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 0de17c1db608fc1af7da8b1e43ea1a97572238fe..e964b1cd5dd092bda83d274da53248a50dfd0ba3 100644 (file)
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -346,7 +346,6 @@ int cifs_open(struct inode *inode, struct file *file)
        struct cifsTconInfo *tcon;
        struct tcon_link *tlink;
        struct cifsFileInfo *pCifsFile = NULL;
-       struct cifsInodeInfo *pCifsInode;
        char *full_path = NULL;
        bool posix_open_ok = false;
        __u16 netfid;
@@ -361,8 +360,6 @@ int cifs_open(struct inode *inode, struct file *file)
        }
        tcon = tlink_tcon(tlink);
 
-       pCifsInode = CIFS_I(file->f_path.dentry->d_inode);
-
        full_path = build_path_from_dentry(file->f_path.dentry);
        if (full_path == NULL) {
                rc = -ENOMEM;
@@ -1146,7 +1143,6 @@ static int cifs_partialpagewrite(struct page *page, unsigned from, unsigned to)
        char *write_data;
        int rc = -EFAULT;
        int bytes_written = 0;
-       struct cifs_sb_info *cifs_sb;
        struct inode *inode;
        struct cifsFileInfo *open_file;
 
@@ -1154,7 +1150,6 @@ static int cifs_partialpagewrite(struct page *page, unsigned from, unsigned to)
                return -EFAULT;
 
        inode = page->mapping->host;
-       cifs_sb = CIFS_SB(inode->i_sb);
 
        offset += (loff_t)from;
        write_data = kmap(page);
@@ -1667,9 +1662,10 @@ static ssize_t
 cifs_iovec_write(struct file *file, const struct iovec *iov,
                 unsigned long nr_segs, loff_t *poffset)
 {
-       size_t total_written = 0, written = 0;
-       unsigned long num_pages, npages;
-       size_t copied, len, cur_len, i;
+       unsigned int written;
+       unsigned long num_pages, npages, i;
+       size_t copied, len, cur_len;
+       ssize_t total_written = 0;
        struct kvec *to_send;
        struct page **pages;
        struct iov_iter it;
@@ -1825,7 +1821,8 @@ cifs_iovec_read(struct file *file, const struct iovec *iov,
 {
        int rc;
        int xid;
-       unsigned int total_read, bytes_read = 0;
+       ssize_t total_read;
+       unsigned int bytes_read = 0;
        size_t len, cur_len;
        int iov_offset = 0;
        struct cifs_sb_info *cifs_sb;