osmo_libusb: Fix NULL check in osmo_usb_removed_cb()
Thread 1 "simtrace2-tool" received signal SIGSEGV, Segmentation fault.
0x00007ffff73dd2a0 in llist_del (entry=0x0) at ../include/osmocom/core/linuxlist.h:130
130 __llist_del(entry->prev, entry->next);
(gdb) bt
Change-Id: I2b7ab8dddd69453826053663dd5589a941c2e47d
diff --git a/src/usb/osmo_libusb.c b/src/usb/osmo_libusb.c
index 05331a1..a6f194a 100644
--- a/src/usb/osmo_libusb.c
+++ b/src/usb/osmo_libusb.c
@@ -99,7 +99,7 @@
static void osmo_usb_removed_cb(int fd, void *user_data)
{
struct osmo_fd *ofd = osmo_fd_get_by_fd(fd);
- if (!fd)
+ if (!ofd)
return;
osmo_fd_unregister(ofd);
talloc_free(ofd);