Fix an infinite loop in pnp_get_ioresource(), which freezes coreboot if
a rare condition arises.
Based on findings by Alexandru Gagniuc <mr.nuke.me@gmail.com>
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Acked-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6323 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
diff --git a/src/devices/pnp_device.c b/src/devices/pnp_device.c
index b2bca03..a6d428a 100644
--- a/src/devices/pnp_device.c
+++ b/src/devices/pnp_device.c
@@ -170,6 +170,12 @@
struct resource *resource;
unsigned moving, gran, step;
+ if (!info->mask) {
+ printk(BIOS_ERR, "ERROR: device %s index %d has no mask.\n",
+ dev_path(dev), index);
+ return;
+ }
+
resource = new_resource(dev, index);
/* Initilize the resource. */