1 files changed, 7 insertions, 0 deletions

diff --git a/init/do_mounts_rd.c b/init/do_mounts_rd.c
index 6be2879cca66..143e98de6f29 100644
--- a/init/do_mounts_rd.c
+++ b/init/do_mounts_rd.c
@@ -342,6 +342,13 @@ static int __init crd_load(int in_fd, int out_fd, decompress_fn deco)
         int result;
         crd_infd = in_fd;
         crd_outfd = out_fd;
+
+        if (!deco) {
+                pr_emerg("Invalid ramdisk decompression routine.  "
+                         "Select appropriate config option.\n");
+                panic("Could not decompress initial ramdisk image.");
+        }
+
         result = deco(NULL, 0, compr_fill, compr_flush, NULL, NULL, error);
         if (decompress_error)
                 result = 1;