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Commit d1111a75 authored by Nick Terrell's avatar Nick Terrell Committed by David Sterba
Browse files

btrfs: Call kunmap if zlib_inflateInit2 fails 



If zlib_inflateInit2 fails, the input page is never unmapped.
Add a call to kunmap when it fails.

Signed-off-by: default avatarNick Terrell <nickrterrell@gmail.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent ed0df618

fs/btrfs/zlib.c

+1 −0
Original line number Diff line number Diff line
@@ -250,6 +250,7 @@ static int zlib_decompress_biovec(struct list_head *ws, struct page **pages_in, 


	if (Z_OK != zlib_inflateInit2(&workspace->strm, wbits)) {

		pr_warn("BTRFS: inflateInit failed\n");

		kunmap(pages_in[page_in_index]);

		return -EIO;

	}

	while (workspace->strm.total_in < srclen) {