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-rw-r--r--arch/arm/kernel/signal.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
index 80b8b5c7e07a..93bb4247b7ed 100644
--- a/arch/arm/kernel/signal.c
+++ b/arch/arm/kernel/signal.c
@@ -426,9 +426,13 @@ setup_return(struct pt_regs *regs, struct k_sigaction *ka,
*/
thumb = handler & 1;
- if (thumb)
+ if (thumb) {
cpsr |= PSR_T_BIT;
- else
+#if __LINUX_ARM_ARCH__ >= 7
+ /* clear the If-Then Thumb-2 execution state */
+ cpsr &= ~PSR_IT_MASK;
+#endif
+ } else
cpsr &= ~PSR_T_BIT;
}
#endif
@@ -532,7 +536,7 @@ setup_rt_frame(int usig, struct k_sigaction *ka, siginfo_t *info,
return err;
}
-static inline void restart_syscall(struct pt_regs *regs)
+static inline void setup_syscall_restart(struct pt_regs *regs)
{
regs->ARM_r0 = regs->ARM_ORIG_r0;
regs->ARM_pc -= thumb_mode(regs) ? 2 : 4;
@@ -567,7 +571,7 @@ handle_signal(unsigned long sig, struct k_sigaction *ka,
}
/* fallthrough */
case -ERESTARTNOINTR:
- restart_syscall(regs);
+ setup_syscall_restart(regs);
}
}
@@ -691,7 +695,7 @@ static int do_signal(sigset_t *oldset, struct pt_regs *regs, int syscall)
if (regs->ARM_r0 == -ERESTARTNOHAND ||
regs->ARM_r0 == -ERESTARTSYS ||
regs->ARM_r0 == -ERESTARTNOINTR) {
- restart_syscall(regs);
+ setup_syscall_restart(regs);
}
}
single_step_set(current);