target: Fix segfault for 'mem2array'

Call 'mem2array' without arguments to reproduce the segmentation
fault.

Change-Id: I02bf46cc8bd317abbb721a8c75d7cbfac99eb34e
Signed-off-by: Marc Schink <openocd-dev@marcschink.de>
Reviewed-on: http://openocd.zylin.com/4534
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-by: Christopher Head <chead@zaber.com>

diff --git a/src/target/target.c b/src/target/target.c
index 1ca6c8e53c1d73eac7879d5a289f4ca751a8be97..591b9ea2c8ee04bee0962a827aef685e55c5f149 100644 (file)
--- a/src/target/target.c
+++ b/src/target/target.c
@@ -4131,8 +4131,9 @@ static int target_mem2array(Jim_Interp *interp, struct target *target, int argc,
         * argv[3] = memory address
         * argv[4] = count of times to read
         */
+
        if (argc < 4 || argc > 5) {
-               Jim_WrongNumArgs(interp, 1, argv, "varname width addr nelems [phys]");
+               Jim_WrongNumArgs(interp, 0, argv, "varname width addr nelems [phys]");
                return JIM_ERR;
        }
        varname = Jim_GetString(argv[0], &len);