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usb: re-use existing values, don't re-determine bus and device address 

Avoid repeated libusb bus number and device address retrieval operations,
instead use variables where the information previously got stored to.
This commit is contained in:
Gerhard Sittig 2018-01-29 20:36:50 +01:00
parent 241c03029d
commit 6f63b1ee67
1 changed files with 1 additions and 2 deletions
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3
src/usb.c
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@ -384,8 +384,7 @@ SR_PRIV GSList *sr_usb_find(libusb_context *usb_ctx, const char *conn)
sr_dbg("Found USB device (VID:PID = %04x:%04x, bus.address = " sr_dbg("Found USB device (VID:PID = %04x:%04x, bus.address = "
"%d.%d).", des.idVendor, des.idProduct, b, a); "%d.%d).", des.idVendor, des.idProduct, b, a);
usb = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]), usb = sr_usb_dev_inst_new(b, a, NULL);
libusb_get_device_address(devlist[i]), NULL);
devices = g_slist_append(devices, usb); devices = g_slist_append(devices, usb);
} }
libusb_free_device_list(devlist, 1); libusb_free_device_list(devlist, 1);