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usb: Remove unnecessary portnr lookup from usb_new_device

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If the device has a parent, it is instantiated from usb_hub_port_connect_change
and the portnr is right there in dev->portnr, so there is no need for this
whole dance to look it up.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Hans de Goede 2014-09-20 17:03:52 +02:00 committed by Marek Vasut
parent 46b7b2e802
commit f7b9baf755
1 changed files with 2 additions and 17 deletions
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19
common/usb.c
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@ -927,7 +927,6 @@ int usb_new_device(struct usb_device *dev)
* thread_id=5729457&forum_id=5398 * thread_id=5729457&forum_id=5398
*/ */
__maybe_unused struct usb_device_descriptor *desc; __maybe_unused struct usb_device_descriptor *desc;
int port = -1;
struct usb_device *parent = dev->parent; struct usb_device *parent = dev->parent;
unsigned short portstatus; unsigned short portstatus;
@ -965,24 +964,10 @@ int usb_new_device(struct usb_device *dev)
#endif #endif
if (parent) { if (parent) {
int j;
/* find the port number we're at */
for (j = 0; j < parent->maxchild; j++) {
if (parent->children[j] == dev) {
port = j;
break;
}
}
if (port < 0) {
printf("usb_new_device:cannot locate device's port.\n");
return 1;
}
/* reset the port for the second time */ /* reset the port for the second time */
err = hub_port_reset(dev->parent, port, &portstatus); err = hub_port_reset(dev->parent, dev->portnr - 1, &portstatus);
if (err < 0) { if (err < 0) {
printf("\n Couldn't reset port %i\n", port); printf("\n Couldn't reset port %i\n", dev->portnr);
return 1; return 1;
} }
} }