From 4544d164738d6efe20e3d1fac514d993fc969ee6 Mon Sep 17 00:00:00 2001
From: David Nusinow <dnusinow@debian.org>
Date: Sat, 1 Mar 2008 13:44:13 -0500
Subject: [PATCH] Don't read 0-size ROM files through sysfs. (bug #13988)
Instead read devmem.
---
src/linux_sysfs.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/src/linux_sysfs.c b/src/linux_sysfs.c
index ba5dce2..635f669 100644
--- a/src/linux_sysfs.c
+++ b/src/linux_sysfs.c
@@ -320,6 +320,11 @@ pci_device_linux_sysfs_read_rom( struct pci_device * dev, void * buffer )
return errno;
}
+ if ( st.st_size == 0 ) {
+ close( fd );
+ return pci_device_linux_devmem_read_rom(dev, buffer);
+ }
+
/* This is a quirky thing on Linux. Even though the ROM and the file
* for the ROM in sysfs are read-only, the string "1" must be written to
--
1.5.4.3