In case of error in soc_clk_dump function are returned different values then CMD return values (-1, 0, 1).
For example: ZynqMP> clk dump exit not allowed from main input shel The patch is checking all negative return values and return CMD_RET_FAILURE which is proper reaction for these cases. Signed-off-by: Michal Simek <michal.si...@xilinx.com> --- cmd/clk.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/cmd/clk.c b/cmd/clk.c index 6d3d46a18447..52b25405ce6e 100644 --- a/cmd/clk.c +++ b/cmd/clk.c @@ -16,7 +16,15 @@ int __weak soc_clk_dump(void) static int do_clk_dump(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]) { - return soc_clk_dump(); + int ret; + + ret = soc_clk_dump(); + if (ret < 0) { + printf("Clock dump error %d\n", ret); + ret = CMD_RET_FAILURE; + } + + return ret; } static cmd_tbl_t cmd_clk_sub[] = { -- 2.17.0 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot