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P2P: Fix scan_res_handler setting for p2p_scan

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The previous version set scan_res_handler unconditionally and then
cleared it if scan request failed. This can result in incorrect clearing
of the handler to NULL for a previously started scan that has not yet
completed. This can make p2p_find command fail to use the
start-after-scan-completion mechanism in some cases. Fix this by setting
scan_res_handler properly after having verified that the driver command
for starting the scan was successful.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
intended-for: hostap-1
This commit is contained in:
Jouni Malinen 2012-06-06 17:07:46 +03:00 committed by Jouni Malinen
parent 792c8877c3
commit 5b37633364
1 changed files with 4 additions and 6 deletions
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10
wpa_supplicant/p2p_supplicant.c
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@ -112,7 +112,6 @@ static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq,
struct wpabuf *wps_ie, *ies;
int social_channels[] = { 2412, 2437, 2462, 0, 0 };
size_t ielen;
int was_in_p2p_scan;
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
return -1;
@ -163,19 +162,18 @@ static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq,
break;
}
was_in_p2p_scan = wpa_s->scan_res_handler == wpas_p2p_scan_res_handler;
wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
ret = wpa_drv_scan(wpa_s, &params);
wpabuf_free(ies);
if (ret) {
wpa_s->scan_res_handler = NULL;
if (wpa_s->scanning || was_in_p2p_scan) {
if (wpa_s->scanning ||
wpa_s->scan_res_handler == wpas_p2p_scan_res_handler) {
wpa_s->p2p_cb_on_scan_complete = 1;
ret = 1;
}
}
} else
wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
return ret;
}