staging: r8188eu: simplify the ps_processing check

It's sufficient to check pwrpriv->ps_processing as part of the while-loop.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220413193654.258507-4-martin@kaiser.cxSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/core/rtw_pwrctrl.c

@@ -382,10 +382,8 @@ int rtw_pwr_wakeup(struct adapter *padapter)
 	if (pwrpriv->ips_deny_time < jiffies + rtw_ms_to_systime(ips_deffer_ms))
 		pwrpriv->ips_deny_time = jiffies + rtw_ms_to_systime(ips_deffer_ms);
 
-	if (pwrpriv->ps_processing) {
-		while (pwrpriv->ps_processing && rtw_get_passing_time_ms(start) <= 3000)
-			msleep(10);
-	}
+	while (pwrpriv->ps_processing && rtw_get_passing_time_ms(start) <= 3000)
+		msleep(10);
 
 	/* System suspend is not allowed to wakeup */
 	while (pwrpriv->bInSuspend && rtw_get_passing_time_ms(start) <= 3000)