P2P: Verify that os_get_random() succeeds

Be more consistent with os_get_random() use (CID 72710).

Signed-off-by: Jouni Malinen <j@w1.fi>

diff --git a/wpa_supplicant/p2p_supplicant.c b/wpa_supplicant/p2p_supplicant.c
index 9fc3e6c..c77ae6a 100644 (file)
--- a/wpa_supplicant/p2p_supplicant.c
+++ b/wpa_supplicant/p2p_supplicant.c
@@ -5075,7 +5075,8 @@ static int wpas_p2p_select_freq_no_pref(struct wpa_supplicant *wpa_s,
        unsigned int i, r;
 
        /* first try some random selection of the social channels */
-       os_get_random((u8 *) &r, sizeof(r));
+       if (os_get_random((u8 *) &r, sizeof(r)) < 0)
+               return -1;
 
        for (i = 0; i < 3; i++) {
                params->freq = 2412 + ((r + i) % 3) * 25;