RFR: JDK-8298093: improve cleanup and error handling of awt_parseColorModel in awt_parseImage.c [v3]

[Matthias Baesken]

> The cleanup and error handling in function awt_parseColorModel in awt_parseImage.c could be improved.

Matthias Baesken has updated the pull request incrementally with one additional commit since the last revision:

  small adjustment

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/11508/files
  - new: https://git.openjdk.org/jdk/pull/11508/files/9b9f56ea..e7dee2a7

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=11508&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=11508&range=01-02

  Stats: 2 lines in 1 file changed: 0 ins; 1 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/11508.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/11508/head:pull/11508

PR: https://git.openjdk.org/jdk/pull/11508