lib/decompress_bunzip2.c: fix checkstack warning

[karo-tx-linux.git] / fs / hpfs / file.c

diff --git a/fs/hpfs/file.c b/fs/hpfs/file.c
index a9ae9bfa752f5a032d411a8def0216027dca54bf..c0340887c7ea619efceba79852159003f3286620 100644 (file)
--- a/fs/hpfs/file.c
+++ b/fs/hpfs/file.c
@@ -97,10 +97,19 @@ static int hpfs_write_begin(struct file *file, struct address_space *mapping,
                        loff_t pos, unsigned len, unsigned flags,
                        struct page **pagep, void **fsdata)
 {
+       int ret;
+
        *pagep = NULL;
-       return cont_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
+       ret = cont_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
                                hpfs_get_block,
                                &hpfs_i(mapping->host)->mmu_private);
+       if (unlikely(ret)) {
+               loff_t isize = mapping->host->i_size;
+               if (pos + len > isize)
+                       vmtruncate(mapping->host, isize);
+       }
+
+       return ret;
 }
 
 static sector_t _hpfs_bmap(struct address_space *mapping, sector_t block)