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cmd: clk: Check return value from soc_clk_dump

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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.simek@xilinx.com>
This commit is contained in:
Michal Simek 2018-04-19 15:15:25 +02:00
parent 811c7bdebe
commit ebc675b98d
1 changed files with 9 additions and 1 deletions
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10
cmd/clk.c
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@ -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[] = {