ChangeSet 1.1526, 2003/12/10 16:00:53-08:00, arvidjaar@mail.ru

[PATCH] USB: prevent catch-all USB aliases in modules.alias

visor.c defines one empty slot in USB ids table that can be filled in at
runtime using module parameters. file2alias generates catch-all alias for it:

alias usb:v*p*dl*dh*dc*dsc*dp*ic*isc*ip* visor

patch adds the same sanity check as in depmod to scripts/file2alias.


 scripts/file2alias.c |    7 +++++++
 1 files changed, 7 insertions(+)


diff -Nru a/scripts/file2alias.c b/scripts/file2alias.c
--- a/scripts/file2alias.c	Wed Dec 10 16:46:45 2003
+++ b/scripts/file2alias.c	Wed Dec 10 16:46:45 2003
@@ -52,6 +52,13 @@
 	id->bcdDevice_lo = TO_NATIVE(id->bcdDevice_lo);
 	id->bcdDevice_hi = TO_NATIVE(id->bcdDevice_hi);
 
+	/*
+	 * Some modules (visor) have empty slots as placeholder for
+	 * run-time specification that results in catch-all alias
+	 */
+	if (!(id->idVendor | id->bDeviceClass | id->bInterfaceClass))
+		return 1;
+
 	strcpy(alias, "usb:");
 	ADD(alias, "v", id->match_flags&USB_DEVICE_ID_MATCH_VENDOR,
 	    id->idVendor);