qcacld-3.0: Validate pProfile before dereferencing it

Add sanity check for pProfile pointer before
dereferencing it in csr api.

Change-Id: I7290a46aea92f0c77c1123143c994cc684e26744
CRs-Fixed: 2775360

core/sme/src/csr/csr_util.c

@@ -1911,6 +1911,11 @@ bool csr_is_phy_mode_match(struct mac_context *mac, uint32_t phyMode,
 	uint32_t bitMask, loopCount;
 	uint32_t bss_chan_freq;
 
+	if (!pProfile) {
+		sme_err("profile not found");
+		return fMatch;
+	}
+
 	if (!QDF_IS_STATUS_SUCCESS(csr_get_phy_mode_from_bss(mac, pSirBssDesc,
 					&phyModeInBssDesc, pIes)))
 		return fMatch;
@@ -1973,30 +1978,28 @@ bool csr_is_phy_mode_match(struct mac_context *mac, uint32_t phyMode,
 	cfgDot11ModeToUse = csr_get_vdev_dot11_mode(mac, pProfile->csrPersona,
 						    cfgDot11ModeToUse);
 	if (fMatch && pReturnCfgDot11Mode) {
-		if (pProfile) {
-			/*
-			 * IEEE 11n spec (8.4.3): HT STA shall
-			 * eliminate TKIP as a choice for the pairwise
-			 * cipher suite if CCMP is advertised by the AP
-			 * or if the AP included an HT capabilities
-			 * element in its Beacons and Probe Response.
-			 */
-			if ((!CSR_IS_11n_ALLOWED(
-					pProfile->negotiatedUCEncryptionType))
-					&& ((eCSR_CFG_DOT11_MODE_11N ==
-						cfgDot11ModeToUse) ||
-					(eCSR_CFG_DOT11_MODE_11AC ==
-						cfgDot11ModeToUse) ||
-					(eCSR_CFG_DOT11_MODE_11AX ==
-						cfgDot11ModeToUse))) {
-				/* We cannot do 11n here */
-				if (WLAN_REG_IS_24GHZ_CH_FREQ(bss_chan_freq)) {
-					cfgDot11ModeToUse =
-						eCSR_CFG_DOT11_MODE_11G;
-				} else {
-					cfgDot11ModeToUse =
-						eCSR_CFG_DOT11_MODE_11A;
-				}
+		/*
+		 * IEEE 11n spec (8.4.3): HT STA shall
+		 * eliminate TKIP as a choice for the pairwise
+		 * cipher suite if CCMP is advertised by the AP
+		 * or if the AP included an HT capabilities
+		 * element in its Beacons and Probe Response.
+		 */
+		if ((!CSR_IS_11n_ALLOWED(
+				pProfile->negotiatedUCEncryptionType))
+				&& ((eCSR_CFG_DOT11_MODE_11N ==
+					cfgDot11ModeToUse) ||
+				(eCSR_CFG_DOT11_MODE_11AC ==
+					cfgDot11ModeToUse) ||
+				(eCSR_CFG_DOT11_MODE_11AX ==
+					cfgDot11ModeToUse))) {
+			/* We cannot do 11n here */
+			if (WLAN_REG_IS_24GHZ_CH_FREQ(bss_chan_freq)) {
+				cfgDot11ModeToUse =
+					eCSR_CFG_DOT11_MODE_11G;
+			} else {
+				cfgDot11ModeToUse =
+					eCSR_CFG_DOT11_MODE_11A;
 			}
 		}
 		*pReturnCfgDot11Mode = cfgDot11ModeToUse;