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Try fallback drivers if global init for preferred drivers fails

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Driver global init was considered a hard failure. Thus if, for example,
you used the Broadcom STA driver and didn't have nl80211 or cfg80211
loaded into the kernel, and specified a driver value of "nl80211,wext",
the nl80211 driver's global init would fail with the following message:

nl80211: 'nl80211' generic netlink not found
Failed to initialize driver 'nl80211'

but since global init was a hard failure, creating the supplicant
interface would fail and the WEXT driver would not be tried.
Give other drivers a chance instead.

Signed-hostap: Dan Williams <dcbw@redhat.com>
intended-for: hostap-1
This commit is contained in:
Dan Williams 2012-02-04 20:09:00 +02:00 committed by Jouni Malinen
parent 4bb70bd80d
commit 0f4668ceac
1 changed files with 5 additions and 2 deletions
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7
wpa_supplicant/wpa_supplicant.c
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@ -1944,8 +1944,11 @@ static int wpa_supplicant_set_driver(struct wpa_supplicant *wpa_s,
for (i = 0; wpa_drivers[i]; i++) { for (i = 0; wpa_drivers[i]; i++) {
if (os_strlen(wpa_drivers[i]->name) == len && if (os_strlen(wpa_drivers[i]->name) == len &&
os_strncmp(driver, wpa_drivers[i]->name, len) == os_strncmp(driver, wpa_drivers[i]->name, len) ==
0) 0) {
return select_driver(wpa_s, i); /* First driver that succeeds wins */
if (select_driver(wpa_s, i) == 0)
return 0;
}
} }
driver = pos + 1; driver = pos + 1;