kernel/sys.c: fix prototype of prctl_get_tid_address()
authorRasmus Villemoes <linux@rasmusvillemoes.dk>
Sat, 24 Oct 2020 01:04:26 +0000 (03:04 +0200)
committerLinus Torvalds <torvalds@linux-foundation.org>
Sun, 25 Oct 2020 18:44:16 +0000 (11:44 -0700)
commit986b9eacb25910865b50e5f298aa8e2df7642f1b
tree300b9558aac3c868b7a4213b6de09117147b81c5
parent23224e45004ed84c8466fd1e8e5860f541187029
kernel/sys.c: fix prototype of prctl_get_tid_address()

tid_addr is not a "pointer to (pointer to int in userspace)"; it is in
fact a "pointer to (pointer to int in userspace) in userspace".  So
sparse rightfully complains about passing a kernel pointer to
put_user().

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
kernel/sys.c