cortex a8: add missing error handling

cortex examine was missing error handling.

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>

diff --git a/src/target/cortex_a8.c b/src/target/cortex_a8.c
index cfec48b6519827c2bc8b8940f4af4d82ba269f2d..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;