Squashfs: Check stream is not NULL in decompressor_multi.c

Fix static checker complaint that stream is not checked in
squashfs_decompressor_destroy().

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
Reviewed-by: Minchan Kim <minchan@kernel.org>

1 files changed, 3 insertions, 4 deletions

diff --git a/fs/squashfs/decompressor_multi.c b/fs/squashfs/decompressor_multi.c
index ae54675a3526..d6008a636479 100644
--- a/fs/squashfs/decompressor_multi.c
+++ b/fs/squashfs/decompressor_multi.c
@@ -119,11 +119,10 @@ void squashfs_decompressor_destroy(struct squashfs_sb_info *msblk)
                         kfree(decomp_strm);
                         stream->avail_decomp--;
                 }
+                WARN_ON(stream->avail_decomp);
+                kfree(stream->comp_opts);
+                kfree(stream);
         }
-
-        WARN_ON(stream->avail_decomp);
-        kfree(stream->comp_opts);
-        kfree(stream);
 }