Better error messages, allow larger-than-needed input when reading.

src/platform/vboot_reference/vkernel/kernel_image.c

Index: src/platform/vboot_reference/vkernel/kernel_image.c
diff --git a/src/platform/vboot_reference/vkernel/kernel_image.c b/src/platform/vboot_reference/vkernel/kernel_image.c
index d22942ace9082ac71f4dce37d7f51c3361485e74..ff0936a99a960001336655ed76135cdfbe555c5d 100644
--- a/src/platform/vboot_reference/vkernel/kernel_image.c
+++ b/src/platform/vboot_reference/vkernel/kernel_image.c
@@ -176,7 +176,7 @@ KernelImage* ReadKernelImage(const char* input_file) {
   image->kernel_data = (uint8_t*) Malloc(image->kernel_len);
   StatefulMemcpy(&st, image->kernel_data, image->kernel_len);
 
-  if(st.overrun || st.remaining_len != 0) {  /* Overrun or underrun. */
+  if(st.overrun) {

[gauravsh, 2010/05/28 07:22:43]

add a comment here that underruns are ok here?

     Free(kernel_buf);
     return NULL;
   }