diff options
Diffstat (limited to 'arch/m32r/kernel/ptrace.c')
| -rw-r--r-- | arch/m32r/kernel/ptrace.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/arch/m32r/kernel/ptrace.c b/arch/m32r/kernel/ptrace.c index e555091eb97..20743754f2b 100644 --- a/arch/m32r/kernel/ptrace.c +++ b/arch/m32r/kernel/ptrace.c @@ -592,16 +592,17 @@ void user_enable_single_step(struct task_struct *child) if (access_process_vm(child, pc&~3, &insn, sizeof(insn), 0) != sizeof(insn)) - break; + return -EIO; compute_next_pc(insn, pc, &next_pc, child); if (next_pc & 0x80000000) - break; + return -EIO; if (embed_debug_trap(child, next_pc)) - break; + return -EIO; invalidate_cache(); + return 0; } void user_disable_single_step(struct task_struct *child) @@ -621,9 +622,11 @@ void ptrace_disable(struct task_struct *child) } long -arch_ptrace(struct task_struct *child, long request, long addr, long data) +arch_ptrace(struct task_struct *child, long request, + unsigned long addr, unsigned long data) { int ret; + unsigned long __user *datap = (unsigned long __user *) data; switch (request) { /* @@ -638,8 +641,7 @@ arch_ptrace(struct task_struct *child, long request, long addr, long data) * read the word at location addr in the USER area. */ case PTRACE_PEEKUSR: - ret = ptrace_read_user(child, addr, - (unsigned long __user *)data); + ret = ptrace_read_user(child, addr, datap); break; /* @@ -660,11 +662,11 @@ arch_ptrace(struct task_struct *child, long request, long addr, long data) break; case PTRACE_GETREGS: - ret = ptrace_getregs(child, (void __user *)data); + ret = ptrace_getregs(child, datap); break; case PTRACE_SETREGS: - ret = ptrace_setregs(child, (void __user *)data); + ret = ptrace_setregs(child, datap); break; default: |