diff options
| author | Dave Airlie <airlied@redhat.com> | 2018-10-04 11:03:34 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2018-10-04 11:03:34 +1000 |
| commit | 6004f172b375f5747e89afc62ad3baaf1bebd58a (patch) | |
| tree | 914fafcc0e373c45c6e0dcc3661dad3a8be5f3d1 /arch/powerpc/lib/code-patching.c | |
| parent | 612c6bd5e3f8b67505316805dc15369598f6ff57 (diff) | |
| parent | 17b57b1883c1285f3d0dc2266e8f79286a7bef38 (diff) | |
BackMerge v4.19-rc6 into drm-next
I have some pulls based on rc6, and I prefer to have an explicit backmerge.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'arch/powerpc/lib/code-patching.c')
| -rw-r--r-- | arch/powerpc/lib/code-patching.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/lib/code-patching.c b/arch/powerpc/lib/code-patching.c index 850f3b8f4da5..6ae2777c220d 100644 --- a/arch/powerpc/lib/code-patching.c +++ b/arch/powerpc/lib/code-patching.c @@ -28,6 +28,12 @@ static int __patch_instruction(unsigned int *exec_addr, unsigned int instr, { int err; + /* Make sure we aren't patching a freed init section */ + if (init_mem_is_free && init_section_contains(exec_addr, 4)) { + pr_debug("Skipping init section patching addr: 0x%px\n", exec_addr); + return 0; + } + __put_user_size(instr, patch_addr, 4, err); if (err) return err; |