ANDROID: overlayfs ovl_create_of_link regression
A comedy of errors caused a regression.
Fixes a regression in commit
272fcd1ca7ceb252b1c3a2961110c7c1722707cf
("ANDROID: overlayfs: override_creds=off option bypass creator_cred")
in combination with
commit
aab9adb4b81bcce107dd1783f6ac41dc1abe9f15
("Merge 4.4.179 into android-4.4") that took in an incomplete
backport of commit
54a07fff4b217607e862b2e1e3fcec32919ad583
("ovl: fix uid/gid when creating over whiteout") (or upstream
commit
d0e13f5bbe4be7c8f27736fc40503dcec04b7de0
("ovl: fix uid/gid when creating over whiteout"))
which did not recognize that ovl_override_creds can return a NULL
pointer.
Signed-off-by: Mark Salyzyn <salyzyn@google.com>
(cherry picked from https://lore.kernel.org/patchwork/patch/
1009299)
Bug:
109821005
Bug:
112955896
Bug:
127298877
Bug:
137541192
Change-Id: Ia6b71a653d1bf728db610e384864bd82d335b923