[PATCH] fix another load_elf_binary error path

[Chris Wright]

Protect against cases where interpreter is NULL.  Patch against 2.4.26-rc2.

Error noted by Kirill Korotaev <kirillx@xxxxxxxxxxx>.

--- a/fs/binfmt_elf.c~unshare	2004-04-08 15:13:55.654720832 -0700
+++ b/fs/binfmt_elf.c	2004-04-08 15:23:52.788942632 -0700
@@ -821,7 +821,8 @@
 	/* error cleanup */
 out_free_dentry:
 	allow_write_access(interpreter);
-	fput(interpreter);
+	if (interpreter)
+		fput(interpreter);
 out_free_interp:
 	if (elf_interpreter)
 		kfree(elf_interpreter);
-
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