update hdmi driver: support 480p

[firefly-linux-kernel-4.4.55.git] / kernel / signal.c

diff --git a/kernel/signal.c b/kernel/signal.c
index 6705320784fd2b07a518c4d2bb47520d0b342aa8..423655af186bfc341ac566701c8fbb400a972146 100644 (file)
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -591,7 +591,7 @@ static int rm_from_queue(unsigned long mask, struct sigpending *s)
 static int check_kill_permission(int sig, struct siginfo *info,
                                 struct task_struct *t)
 {
-       const struct cred *cred = current_cred(), *tcred;
+       const struct cred *cred, *tcred;
        struct pid *sid;
        int error;
 
@@ -605,8 +605,10 @@ static int check_kill_permission(int sig, struct siginfo *info,
        if (error)
                return error;
 
+       cred = current_cred();
        tcred = __task_cred(t);
-       if ((cred->euid ^ tcred->suid) &&
+       if (!same_thread_group(current, t) &&
+           (cred->euid ^ tcred->suid) &&
            (cred->euid ^ tcred->uid) &&
            (cred->uid  ^ tcred->suid) &&
            (cred->uid  ^ tcred->uid) &&
@@ -939,7 +941,8 @@ static void print_fatal_signal(struct pt_regs *regs, int signr)
                for (i = 0; i < 16; i++) {
                        unsigned char insn;
 
-                       __get_user(insn, (unsigned char *)(regs->ip + i));
+                       if (get_user(insn, (unsigned char *)(regs->ip + i)))
+                               break;
                        printk("%02x ", insn);
                }
        }