}
EXPORT_SYMBOL(setup_arg_pages);
+#else
+
+/*
+ * Transfer the program arguments and environment from the holding pages
+ * onto the stack. The provided stack pointer is adjusted accordingly.
+ */
+int transfer_args_to_stack(struct linux_binprm *bprm,
+ unsigned long *sp_location)
+{
+ unsigned long index, stop, sp;
+ int ret = 0;
+
+ stop = bprm->p >> PAGE_SHIFT;
+ sp = *sp_location;
+
+ for (index = MAX_ARG_PAGES - 1; index >= stop; index--) {
+ unsigned int offset = index == stop ? bprm->p & ~PAGE_MASK : 0;
+ char *src = kmap(bprm->page[index]) + offset;
+ sp -= PAGE_SIZE - offset;
+ if (copy_to_user((void *) sp, src, PAGE_SIZE - offset) != 0)
+ ret = -EFAULT;
+ kunmap(bprm->page[index]);
+ if (ret)
+ goto out;
+ }
+
+ *sp_location = sp;
+
+out:
+ return ret;
+}
+EXPORT_SYMBOL(transfer_args_to_stack);
+
#endif /* CONFIG_MMU */
static struct file *do_open_execat(int fd, struct filename *name, int flags)
goto out;
}
- *buf = vmalloc(i_size);
+ if (id != READING_FIRMWARE_PREALLOC_BUFFER)
+ *buf = vmalloc(i_size);
if (!*buf) {
ret = -ENOMEM;
goto out;
out_free:
if (ret < 0) {
- vfree(*buf);
- *buf = NULL;
+ if (id != READING_FIRMWARE_PREALLOC_BUFFER) {
+ vfree(*buf);
+ *buf = NULL;
+ }
}
out: