cmd: simplify do_adc_single()

If argc is not < 3, it must be >= 3.

If argc >= 3, argv[2] cannot be NULL.

Fixes: 9de612ae4ded ("cmd: adc: Add support for storing ADC result in env variable")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

diff --git a/cmd/adc.c b/cmd/adc.c
index 8de9121..195efa8 100644 (file)
--- a/cmd/adc.c
+++ b/cmd/adc.c
@@ -71,7 +71,6 @@ static int do_adc_info(struct cmd_tbl *cmdtp, int flag, int argc,
 static int do_adc_single(struct cmd_tbl *cmdtp, int flag, int argc,
                         char *const argv[])
 {
-       char *varname = NULL;
        struct udevice *dev;
        unsigned int data;
        int ret, uV, val;
@@ -79,9 +78,6 @@ static int do_adc_single(struct cmd_tbl *cmdtp, int flag, int argc,
        if (argc < 3)
                return CMD_RET_USAGE;
 
-       if (argc >= 3)
-               varname = argv[2];
-
        ret = adc_channel_single_shot(argv[1], simple_strtol(argv[2], NULL, 0),
                                      &data);
        if (ret) {
@@ -99,8 +95,7 @@ static int do_adc_single(struct cmd_tbl *cmdtp, int flag, int argc,
                printf("%u\n", data);
        }
 
-       if (varname)
-               env_set_ulong(varname, val);
+       env_set_ulong(argv[2], val);
 
        return CMD_RET_SUCCESS;
 }