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usb: usbip tool: Fix get_nports()
The commit 0775a9cbc694e8c72 ("usbip: vhci extension: modifications to vhci driver") introduced multiple controllers, and nports as a sys file, and claimed to read the nports from it, but it didn't. In addition, the get_nports() has been so wrong that even with 8 port lines for instance, it gets 7 (I am guessing it is due to a '\n' mess). Nevertheless, we fix it by reading the nports attribute. Reviewed-by: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Yuyang Du <yuyang.du@intel.com> Acked-by: Shuah Khan <shuahkh@osg.samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -123,33 +123,15 @@ static int refresh_imported_device_list(void)
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static int get_nports(void)
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{
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char *c;
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int nports = 0;
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const char *attr_status;
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const char *attr_nports;
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attr_status = udev_device_get_sysattr_value(vhci_driver->hc_device,
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"status");
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if (!attr_status) {
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err("udev_device_get_sysattr_value failed");
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attr_nports = udev_device_get_sysattr_value(vhci_driver->hc_device, "nports");
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if (!attr_nports) {
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err("udev_device_get_sysattr_value nports failed");
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return -1;
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}
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/* skip a header line */
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c = strchr(attr_status, '\n');
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if (!c)
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return 0;
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c++;
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while (*c != '\0') {
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/* go to the next line */
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c = strchr(c, '\n');
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if (!c)
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return nports;
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c++;
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nports += 1;
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}
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return nports;
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return (int)strtoul(attr_nports, NULL, 10);
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}
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/*
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