arm: add error propagation to generic get_ttb fn

[openocd.git] / src / target / arm720t.c

diff --git a/src/target/arm720t.c b/src/target/arm720t.c
index 0ea6cb2b0e211559d04983728fa18e094842c33b..b269f9488eda5acd43ed8bb652df6eea3f6f1024 100644 (file)
--- a/src/target/arm720t.c
+++ b/src/target/arm720t.c
@@ -134,16 +134,24 @@ static int arm720t_write_cp15(struct target *target, uint32_t opcode, uint32_t v
        return ERROR_OK;
 }
 
-static uint32_t arm720t_get_ttb(struct target *target)
+static int arm720t_get_ttb(struct target *target, uint32_t *result)
 {
        uint32_t ttb = 0x0;
 
-       arm720t_read_cp15(target, 0xee120f10, &ttb);
-       jtag_execute_queue();
+       int retval;
+
+       retval = arm720t_read_cp15(target, 0xee120f10, &ttb);
+       if (retval != ERROR_OK)
+               return retval;
+       retval = jtag_execute_queue();
+       if (retval != ERROR_OK)
+               return retval;
 
        ttb &= 0xffffc000;
 
-       return ttb;
+       *result = ttb;
+
+       return ERROR_OK;
 }
 
 static void arm720t_disable_mmu_caches(struct target *target,