diff options
| author | Steve French <stfrench@microsoft.com> | 2018-11-01 16:54:32 +0100 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2018-11-02 20:09:42 +0100 |
| commit | b98e26df07549d4649ac5b8f24c49f5c722bbc7e (patch) | |
| tree | 7539c352ac56d64bd2eece3b2e7773f879606c0c /fs/cifs | |
| parent | cifs: don't dereference smb_file_target before null check (diff) | |
| download | linux-b98e26df07549d4649ac5b8f24c49f5c722bbc7e.tar.xz linux-b98e26df07549d4649ac5b8f24c49f5c722bbc7e.zip | |
cifs: fix signed/unsigned mismatch on aio_read patch
The patch "CIFS: Add support for direct I/O read" had
a signed/unsigned mismatch (ssize_t vs. size_t) in the
return from one function. Similar trivial change
in aio_write
Signed-off-by: Long Li <longli@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reported-by: Julia Lawall <julia.lawall@lip6.fr>
Diffstat (limited to '')
| -rw-r--r-- | fs/cifs/file.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/fs/cifs/file.c b/fs/cifs/file.c index 937ffa79066b..74c33d5fafc8 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -2625,18 +2625,21 @@ cifs_write_from_iter(loff_t offset, size_t len, struct iov_iter *from, break; if (ctx->direct_io) { - cur_len = iov_iter_get_pages_alloc( + ssize_t result; + + result = iov_iter_get_pages_alloc( from, &pagevec, wsize, &start); - if (cur_len < 0) { + if (result < 0) { cifs_dbg(VFS, "direct_writev couldn't get user pages " "(rc=%zd) iter type %d iov_offset %zd " "count %zd\n", - cur_len, from->type, + result, from->type, from->iov_offset, from->count); dump_stack(); break; } + cur_len = (size_t)result; iov_iter_advance(from, cur_len); nr_pages = @@ -3322,21 +3325,23 @@ cifs_send_async_read(loff_t offset, size_t len, struct cifsFileInfo *open_file, cur_len = min_t(const size_t, len, rsize); if (ctx->direct_io) { + ssize_t result; - cur_len = iov_iter_get_pages_alloc( + result = iov_iter_get_pages_alloc( &direct_iov, &pagevec, cur_len, &start); - if (cur_len < 0) { + if (result < 0) { cifs_dbg(VFS, "couldn't get user pages (cur_len=%zd)" " iter type %d" " iov_offset %zd count %zd\n", - cur_len, direct_iov.type, + result, direct_iov.type, direct_iov.iov_offset, direct_iov.count); dump_stack(); break; } + cur_len = (size_t)result; iov_iter_advance(&direct_iov, cur_len); rdata = cifs_readdata_direct_alloc( |