modemmanager: fix physdev sysfs path detection in PCIe modems

The PCIe physdev path lookup relies on the 'vendor' and 'device'
attribute files, instead of the 'idVendor' and 'idProduct' ones, which
are USB specific.

Signed-off-by: Aleksander Morgado <redacted>

diff --git a/net/modemmanager/files/modemmanager.common b/net/modemmanager/files/modemmanager.common
index b898a7798f8cc87f0c99ab7554f44056ac15dde7..b4139abadb1bfec43ba7174d57c031ec7b983d62 100644 (file)
--- a/net/modemmanager/files/modemmanager.common
+++ b/net/modemmanager/files/modemmanager.common
@@ -39,12 +39,21 @@ mm_find_physdev_sysfs_path() {
                # avoid infinite loops iterating
                [ -z "${tmp_path}" ] || [ "${tmp_path}" = "/" ] && return
 
-               # the physical device will be that with a idVendor and idProduct pair of files
+               # For USB devices, the physical device will be that with a idVendor
+               # and idProduct pair of files
                [ -f "${tmp_path}"/idVendor ] && [ -f "${tmp_path}"/idProduct ] && {
                        tmp_path=$(readlink -f "$tmp_path")
                        echo "${tmp_path}"
                        return
                }
+
+               # For PCI devices, the physical device will be that with a vendor
+               # and device pair of files
+               [ -f "${tmp_path}"/vendor ] && [ -f "${tmp_path}"/device ] && {
+                       tmp_path=$(readlink -f "$tmp_path")
+                       echo "${tmp_path}"
+                       return
+               }
        done
 }