Commit 6b29b7bc authored by Steve French's avatar Steve French

Remember to free mapping in all writepage paths

parent e61ed9f5
......@@ -393,7 +393,7 @@ cifs_partialpagewrite(struct page *page,unsigned from, unsigned to)
{
struct address_space *mapping = page->mapping;
loff_t offset = (loff_t)page->index << PAGE_CACHE_SHIFT;
char * write_data = kmap(page);
char * write_data;
int rc = -EFAULT;
int bytes_written = 0;
struct cifs_sb_info *cifs_sb;
......@@ -411,6 +411,7 @@ cifs_partialpagewrite(struct page *page,unsigned from, unsigned to)
/* figure out which file struct to use
if (file->private_data == NULL) {
kunmap(page);
FreeXid(xid);
return -EBADF;
}
......@@ -424,9 +425,11 @@ cifs_partialpagewrite(struct page *page,unsigned from, unsigned to)
}
offset += (loff_t)from;
write_data = kmap(page);
write_data += from;
if((to > PAGE_CACHE_SIZE) || (from > to) || (offset > mapping->host->i_size)) {
kunmap(page);
FreeXid(xid);
return -EIO;
}
......@@ -459,6 +462,7 @@ cifs_partialpagewrite(struct page *page,unsigned from, unsigned to)
rc = -EIO;
}
kunmap(page);
FreeXid(xid);
return rc;
}
......
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