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Diffstat (limited to 'drivers/ieee1394/ieee1394_core.h')
-rw-r--r--drivers/ieee1394/ieee1394_core.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/ieee1394/ieee1394_core.h b/drivers/ieee1394/ieee1394_core.h
index 21d50f73a21..28b9f58bafd 100644
--- a/drivers/ieee1394/ieee1394_core.h
+++ b/drivers/ieee1394/ieee1394_core.h
@@ -5,6 +5,7 @@
#include <linux/fs.h>
#include <linux/list.h>
#include <linux/types.h>
+#include <linux/cdev.h>
#include <asm/atomic.h>
#include "hosts.h"
@@ -155,7 +156,10 @@ void hpsb_packet_received(struct hpsb_host *host, quadlet_t *data, size_t size,
*/
static inline unsigned char ieee1394_file_to_instance(struct file *file)
{
- return file->f_path.dentry->d_inode->i_cindex;
+ int idx = cdev_index(file->f_path.dentry->d_inode);
+ if (idx < 0)
+ idx = 0;
+ return idx;
}
extern int hpsb_disable_irm;