[mythtv-commits] Ticket #12238: Patch to address technical violation of memcpy null source address

[MythTV]

#12238: Patch to address technical violation of memcpy null source address
-------------------------------------------------+-------------------------
     Reporter:  Gary Buhrmaster                  |      Owner:
  <gary.buhrmaster@…>                            |     Status:  new
         Type:  Patch - Bug Fix                  |  Milestone:  unknown
     Priority:  trivial                          |    Version:  Master Head
    Component:  MythTV - General                 |   Keywords:
     Severity:  low                              |
Ticket locked:  0                                |
-------------------------------------------------+-------------------------
 Static analysis (scan-build) reported that memcpy could be called with a
 NULL source address (where length would be zero) when following specific
 code paths.  That is technically a violation of the library function
 (although most known implementations would operate properly without
 producing a fault with a length of zero).  This patch provides the
 appropriate check to avoid/resolve the potential issue.  One less static
 analysis reported bug.

 Visual check of the code only (the "it looks reasonable to me" check), I
 have no CAM devices to even consider testing with.

 github ref:
 https://github.com/garybuhrmaster/mythtv/commit/91cb0eae37011db0a916c59cb28d4c3b3351efe5
 github git-am ref:
 https://github.com/garybuhrmaster/mythtv/commit/91cb0eae37011db0a916c59cb28d4c3b3351efe5.patch

--
Ticket URL: <https://code.mythtv.org/trac/ticket/12238>
MythTV <http://www.mythtv.org>
MythTV Media Center