hostfs: fix memory handling in follow_link()
1) argument should not be freed in any case - the caller already has it as ->s_fs_info (and uses it a lot afterwards) 2) allocate readlink buffer with kmalloc() - the caller has no way to tell if it's got that (on absolute symlink) or a result of kasprintf(). Sure, for SLAB and SLUB kfree() works on results of kmem_cache_alloc(), but that's not documented anywhere, might change in the future *and* is already not true for SLOB. Fixes: 52b209f7 ("get rid of hostfs_read_inode()") Signed-off-by:Al Viro <viro@zeniv.linux.org.uk>
parent
a38fd874
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