Check for invalid initrd file

Submitted by Mohan Kumar M on April 12, 2010, 4:31 a.m.

Details

Message ID 1271046693-6240-1-git-send-email-mohan@in.ibm.com
State New
Headers show

Commit Message

Mohan Kumar M April 12, 2010, 4:31 a.m.
When qemu is invoked with an invalid initrd file, it crashes. Following
patch prints a error message and exits if an invalid initrd is
specified. Includes changes suggested by JV.

Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com>
---
 hw/pc.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

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diff --git a/hw/pc.c b/hw/pc.c
index ba14df0..99649ba 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -657,6 +657,12 @@  static void load_linux(void *fw_cfg,
 	}
 
 	initrd_size = get_image_size(initrd_filename);
+        if (initrd_size < 0) {
+            fprintf(stderr, "qemu: error reading initrd %s\n",
+                 initrd_filename);
+            exit(1);
+        }
+
         initrd_addr = (initrd_max-initrd_size) & ~4095;
 
         initrd_data = qemu_malloc(initrd_size);