[PATCH v7 1/4] target/riscv: Check for valid itimer pointer before free

[Himanshu Chauhan]

Check if each element of array of pointers for itimer contains a non-null
pointer before freeing.

Signed-off-by: Himanshu Chauhan <hchauhan@ventanamicro.com>
---
 target/riscv/debug.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/target/riscv/debug.c b/target/riscv/debug.c
index e30d99cc2f..5f14b39b06 100644
--- a/target/riscv/debug.c
+++ b/target/riscv/debug.c
@@ -938,7 +938,10 @@ void riscv_trigger_reset_hold(CPURISCVState *env)
         env->tdata3[i] = 0;
         env->cpu_breakpoint[i] = NULL;
         env->cpu_watchpoint[i] = NULL;
-        timer_del(env->itrigger_timer[i]);
+        if (env->itrigger_timer[i]) {
+            timer_del(env->itrigger_timer[i]);
+            env->itrigger_timer[i] = NULL;
+        }
     }
 
     env->mcontext = 0;
-- 
2.34.1