[PATCH 4.5 83/87] hpfs: fix remount failure when there are no options changed

4.5-stable review patch. If anyone has any objections, please let me know. -- From: Mikulas Patocka commit 44d51706b4685f965cd32acde3fe0fcc1e6198e8 upstream. Commit ce657611baf9 ("hpfs: kstrdup() out of memory handling") checks if the kstrdup function

[PATCH 4.5 83/87] hpfs: fix remount failure when there are no options changed

4.5-stable review patch. If anyone has any objections, please let me know. -- From: Mikulas Patocka commit 44d51706b4685f965cd32acde3fe0fcc1e6198e8 upstream. Commit ce657611baf9 ("hpfs: kstrdup() out of memory handling") checks if the kstrdup function returns NULL due to