Fix crash when mode number fetched from the target is invalid.

[openocd.git] / src / target / armv4_5.c

diff --git a/src/target/armv4_5.c b/src/target/armv4_5.c
index 264a4437b77fec4a39345d4d6b170ab92c93f6d2..e546e404d46c0a0e9422240ac32f0f1d5e9f931f 100644 (file)
--- a/src/target/armv4_5.c
+++ b/src/target/armv4_5.c
@@ -329,6 +329,9 @@ int handle_armv4_5_reg_command(struct command_context_s *cmd_ctx, char *cmd, cha
                return ERROR_OK;
        }
        
+       if (armv4_5_mode_to_number(armv4_5->core_mode)==-1)
+               return ERROR_FAIL;
+
        for (num = 0; num <= 15; num++)
        {
                output_len = 0;
@@ -441,6 +444,9 @@ int armv4_5_get_gdb_reg_list(target_t *target, reg_t **reg_list[], int *reg_list
        armv4_5_common_t *armv4_5 = target->arch_info;
        int i;
        
+       if (armv4_5_mode_to_number(armv4_5->core_mode)==-1)
+               return ERROR_FAIL;
+       
        *reg_list_size = 26;
        *reg_list = malloc(sizeof(reg_t*) * (*reg_list_size));
        
@@ -485,6 +491,9 @@ int armv4_5_run_algorithm(struct target_s *target, int num_mem_params, mem_param
                return ERROR_TARGET_NOT_HALTED;
        }
        
+       if (armv4_5_mode_to_number(armv4_5->core_mode)==-1)
+               return ERROR_FAIL;
+
        for (i = 0; i <= 16; i++)
        {
                if (!ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5_algorithm_info->core_mode, i).valid)