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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-12-11 08:41:08 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-12-11 08:41:08 +0100 |
| commit | 42e64571d516ef761d9f330c80493637cbf3bdda (patch) | |
| tree | 5f3df1c06c2d571efa5fd72d0c8022a80140eec2 /arch/powerpc/kernel/process.c | |
| parent | b8f3bff057b017309fbd61fe74712b1f185b5399 (diff) | |
| parent | 50c4c4e268a2d7a3e58ebb698ac74da0de40ae36 (diff) | |
| download | cachepc-linux-42e64571d516ef761d9f330c80493637cbf3bdda.tar.gz cachepc-linux-42e64571d516ef761d9f330c80493637cbf3bdda.zip | |
Merge 4.15-rc3 into tty-next
We want the serial/tty fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/powerpc/kernel/process.c')
| -rw-r--r-- | arch/powerpc/kernel/process.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index bfdd783e3916..5acb5a176dbe 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -1569,16 +1569,22 @@ void arch_release_task_struct(struct task_struct *t) */ int set_thread_tidr(struct task_struct *t) { + int rc; + if (!cpu_has_feature(CPU_FTR_ARCH_300)) return -EINVAL; if (t != current) return -EINVAL; - t->thread.tidr = assign_thread_tidr(); - if (t->thread.tidr < 0) - return t->thread.tidr; + if (t->thread.tidr) + return 0; + + rc = assign_thread_tidr(); + if (rc < 0) + return rc; + t->thread.tidr = rc; mtspr(SPRN_TIDR, t->thread.tidr); return 0; |