arm_adi_v5: error propagation fixes

[openocd] / src / target / cortex_a8.c

diff --git a/src/target/cortex_a8.c b/src/target/cortex_a8.c
index 0b12abe5d6e16c100150bf9b9e2f7cb1a619ebc3..933b42e4ce004719a4c0bbec3129909efe2edf43 100644 (file)
--- a/src/target/cortex_a8.c
+++ b/src/target/cortex_a8.c
@@ -1523,8 +1523,14 @@ static int cortex_a8_examine_first(struct target *target)
        /* We do one extra read to ensure DAP is configured,
         * we call ahbap_debugport_init(swjdp) instead
         */
-       ahbap_debugport_init(swjdp);
-       mem_ap_read_atomic_u32(swjdp, armv7a->debug_base + CPUDBG_CPUID, &cpuid);
+       retval = ahbap_debugport_init(swjdp);
+       if (retval != ERROR_OK)
+               return retval;
+
+       retval = mem_ap_read_atomic_u32(swjdp, armv7a->debug_base + CPUDBG_CPUID, &cpuid);
+       if (retval != ERROR_OK)
+               return retval;
+
        if ((retval = mem_ap_read_atomic_u32(swjdp,
                        armv7a->debug_base + CPUDBG_CPUID, &cpuid)) != ERROR_OK)
        {
@@ -1559,7 +1565,9 @@ static int cortex_a8_examine_first(struct target *target)
        LOG_DEBUG("didr = 0x%08" PRIx32, didr);
 
        armv7a->armv4_5_common.core_type = ARM_MODE_MON;
-       cortex_a8_dpm_setup(cortex_a8, didr);
+       retval = cortex_a8_dpm_setup(cortex_a8, didr);
+       if (retval != ERROR_OK)
+               return retval;
 
        /* Setup Breakpoint Register Pairs */
        cortex_a8->brp_num = ((didr >> 24) & 0x0F) + 1;
@@ -1839,10 +1847,13 @@ COMMAND_HANDLER(cortex_a8_handle_cache_info_command)
 COMMAND_HANDLER(cortex_a8_handle_dbginit_command)
 {
        struct target *target = get_current_target(CMD_CTX);
+       if (!target_was_examined(target))
+       {
+               LOG_ERROR("target not examined yet");
+               return ERROR_FAIL;
+       }
 
-       cortex_a8_init_debug_access(target);
-
-       return ERROR_OK;
+       return cortex_a8_init_debug_access(target);
 }
 
 static const struct command_registration cortex_a8_exec_command_handlers[] = {