[Rev 02] RFR: 8212034: Potential memory leaks in jpegLoader.c in error case

[Ambarish Rapte]

> Memory allocated in initDecompressor() and decompressIndirect() is not freed in error case.
> In error case,
> 1. Allocated memory should be freed.
> 2. Appropriate de-initialization jpeg library calls should be added.
> 
> Verified that,
> 1. All unit and systems tests pass on three platforms, and
> 2. Memory consumption with and without fix is similar by comparing memory before and after showing 10 jpeg images for 100 times.

The pull request has been updated with a new target base due to a merge or a rebase.

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Commits:
 - b91e4236: Merge with master
 - 8a48080a: correcting use of scanline_ptr
 - 7af932b7: 8212034: Memory leaks in jpegLoader.c in error case

Changes: https://git.openjdk.java.net/jfx/pull/54/files
 Webrev: https://webrevs.openjdk.java.net/jfx/54/webrev.02
  Stats: 59 lines in 1 file changed: 33 ins; 15 del; 11 mod
  Patch: https://git.openjdk.java.net/jfx/pull/54.diff
  Fetch: git fetch https://git.openjdk.java.net/jfx pull/54/head:pull/54

PR: https://git.openjdk.java.net/jfx/pull/54