diff options
Diffstat (limited to 'arch/microblaze/kernel/signal.c')
| -rw-r--r-- | arch/microblaze/kernel/signal.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/microblaze/kernel/signal.c b/arch/microblaze/kernel/signal.c index c3aebec71c0c..c78a0ff48066 100644 --- a/arch/microblaze/kernel/signal.c +++ b/arch/microblaze/kernel/signal.c @@ -194,7 +194,7 @@ static int setup_rt_frame(struct ksignal *ksig, sigset_t *set, preempt_disable(); ptep = pte_offset_map(pmdp, address); - if (pte_present(*ptep)) { + if (ptep && pte_present(*ptep)) { address = (unsigned long) page_address(pte_page(*ptep)); /* MS: I need add offset in page */ address += ((unsigned long)frame->tramp) & ~PAGE_MASK; @@ -203,7 +203,8 @@ static int setup_rt_frame(struct ksignal *ksig, sigset_t *set, invalidate_icache_range(address, address + 8); flush_dcache_range(address, address + 8); } - pte_unmap(ptep); + if (ptep) + pte_unmap(ptep); preempt_enable(); if (err) return -EFAULT; |