cortex a8: add missing error handling for cortex_a8_dap_write/read_coreregister_u32()

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

diff --git a/src/target/cortex_a8.c b/src/target/cortex_a8.c
index d092223207b9ce71acaf86ce2a80b1e76713365d..0f5c74289bd3a872c70160b099328c7ad9a0ea69 100644 (file)
--- a/src/target/cortex_a8.c
+++ b/src/target/cortex_a8.c
@@ -180,8 +180,12 @@ static int cortex_a8_read_regs_through_mem(struct target *target, uint32_t addre
        struct armv7a_common *armv7a = target_to_armv7a(target);
        struct adiv5_dap *swjdp = &armv7a->dap;
 
-       cortex_a8_dap_read_coreregister_u32(target, regfile, 0);
-       cortex_a8_dap_write_coreregister_u32(target, address, 0);
+       retval = cortex_a8_dap_read_coreregister_u32(target, regfile, 0);
+       if (retval != ERROR_OK)
+               return retval;
+       retval = cortex_a8_dap_write_coreregister_u32(target, address, 0);
+       if (retval != ERROR_OK)
+               return retval;
        retval = cortex_a8_exec_opcode(target, ARMV4_5_STMIA(0, 0xFFFE, 0, 0), NULL);
        if (retval != ERROR_OK)
                return retval;
@@ -965,7 +969,9 @@ static int cortex_a8_debug_entry(struct target *target)
                target_free_working_area(target, regfile_working_area);
 
                /* read Current PSR */
-               cortex_a8_dap_read_coreregister_u32(target, &cpsr, 16);
+               retval = cortex_a8_dap_read_coreregister_u32(target, &cpsr, 16);
+               if (retval != ERROR_OK)
+                       return retval;
                dap_ap_select(swjdp, swjdp_debugap);
                LOG_DEBUG("cpsr: %8.8" PRIx32, cpsr);