osmo_libusb: Check return of libusb_get_string_descriptor_ascii()
Change-Id: Ifc0133737627a8277635f8f3662b3f6e922be149
Closes: CID#207713
diff --git a/src/usb/osmo_libusb.c b/src/usb/osmo_libusb.c
index 9ad6240..7a13a7e 100644
--- a/src/usb/osmo_libusb.c
+++ b/src/usb/osmo_libusb.c
@@ -334,6 +334,12 @@
}
rc = libusb_get_string_descriptor_ascii(devh, dev_desc.iSerialNumber,
(uint8_t *) strbuf, sizeof(strbuf));
+ if (rc < 0) {
+ LOGP(DLUSB, LOGL_ERROR, "Cannot read USB Descriptor: %s\n",
+ libusb_strerror(rc));
+ libusb_close(devh);
+ continue;
+ }
libusb_close(devh);
if (strcmp(strbuf, serial))
continue;