IFDPowerICC(): check the value returned by IFDStatusICC()

The reader may be gone at this step.
See https://archives.neohapsis.com/archives/dev/muscle/2012-q2/0041.html


git-svn-id: svn:https://anonscm.debian.org/svn/pcsclite/trunk/PCSC@6312 0ce88b0d-b2fd-0310-8134-9614164e65ea

src/ifdwrapper.c

@@ -266,7 +266,14 @@ LONG IFDPowerICC(READER_CONTEXT * rContext, DWORD dwAction,
  /*
  * Check that the card is inserted first
  */
- (void)IFDStatusICC(rContext, &dwStatus);
+ rv = IFDStatusICC(rContext, &dwStatus);
+ if (rv != IFD_SUCCESS)
+ {
+ if (rv == IFD_NO_SUCH_DEVICE)
+ return SCARD_E_READER_UNAVAILABLE;
+
+ return SCARD_E_NOT_TRANSACTED;
+ }
 
  if (dwStatus & SCARD_ABSENT)
  return SCARD_W_REMOVED_CARD;