vm: add VM_FAULT_SIGSEGV handling support

[firefly-linux-kernel-4.4.55.git] / arch / powerpc / kernel / ptrace.c

diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 98c2fc198712aabe3f90055e24d653df604be78e..64f7bd5b1b0f59bcf23fa47c22eb012a5a440b16 100644 (file)
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -1449,7 +1449,9 @@ static long ppc_set_hwdebug(struct task_struct *child,
         */
        if (bp_info->addr_mode == PPC_BREAKPOINT_MODE_RANGE_INCLUSIVE) {
                len = bp_info->addr2 - bp_info->addr;
-       } else if (bp_info->addr_mode != PPC_BREAKPOINT_MODE_EXACT) {
+       } else if (bp_info->addr_mode == PPC_BREAKPOINT_MODE_EXACT)
+               len = 1;
+       else {
                ptrace_put_breakpoints(child);
                return -EINVAL;
        }