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log: check argument of 'log level' command

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Check that the argument provided to the 'log level' command is in the range
between zero and CONFIG_LOG_MAX_LEVEL.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Heinrich Schuchardt 2020-05-31 13:44:51 +00:00 committed by Simon Glass
parent 7b6c34cb15
commit 77007f9543
1 changed files with 11 additions and 3 deletions
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14
cmd/log.c
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@ -14,10 +14,18 @@ static char log_fmt_chars[LOGF_COUNT] = "clFLfm";
static int do_log_level(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
if (argc > 1)
gd->default_log_level = simple_strtol(argv[1], NULL, 10);
else
if (argc > 1) {
long log_level = simple_strtol(argv[1], NULL, 10);
if (log_level < 0 || log_level > _LOG_MAX_LEVEL) {
printf("Only log levels <= %d are supported\n",
_LOG_MAX_LEVEL);
return CMD_RET_FAILURE;
}
gd->default_log_level = log_level;
} else {
printf("Default log level: %d\n", gd->default_log_level);
}
return 0;
}