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CMD_I2C: make alen=0 work

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Signed-off-by: Reinhard Meyer <u-boot@emk-elektronik.de>
This commit is contained in:
Reinhard Meyer 2010-08-25 14:41:16 +02:00 committed by Heiko Schocher
parent a947f4b68b
commit 7a92e53cd0
1 changed files with 7 additions and 10 deletions
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17
common/cmd_i2c.c
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@ -152,7 +152,7 @@ int i2c_set_bus_speed(unsigned int)
/*
* get_alen: small parser helper function to get address length
* returns the address length,or 0 on error
* returns the address length
*/
static uint get_alen(char *arg)
{
@ -163,9 +163,6 @@ static uint get_alen(char *arg)
for (j = 0; j < 8; j++) {
if (arg[j] == '.') {
alen = arg[j+1] - '0';
if (alen > 3) {
return 0;
}
break;
} else if (arg[j] == '\0')
break;
@ -198,7 +195,7 @@ static int do_i2c_read ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv
*/
devaddr = simple_strtoul(argv[2], NULL, 16);
alen = get_alen(argv[2]);
if (alen == 0)
if (alen > 3)
return cmd_usage(cmdtp);
/*
@ -255,7 +252,7 @@ static int do_i2c_md ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]
*/
addr = simple_strtoul(argv[2], NULL, 16);
alen = get_alen(argv[2]);
if (alen == 0)
if (alen > 3)
return cmd_usage(cmdtp);
/*
@ -337,7 +334,7 @@ static int do_i2c_mw ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]
*/
addr = simple_strtoul(argv[2], NULL, 16);
alen = get_alen(argv[2]);
if (alen == 0)
if (alen > 3)
return cmd_usage(cmdtp);
/*
@ -399,7 +396,7 @@ static int do_i2c_crc (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]
*/
addr = simple_strtoul(argv[2], NULL, 16);
alen = get_alen(argv[2]);
if (alen == 0)
if (alen > 3)
return cmd_usage(cmdtp);
/*
@ -477,7 +474,7 @@ mod_i2c_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char * const arg
*/
addr = simple_strtoul(argv[2], NULL, 16);
alen = get_alen(argv[2]);
if (alen == 0)
if (alen > 3)
return cmd_usage(cmdtp);
}
@ -621,7 +618,7 @@ static int do_i2c_loop(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]
*/
addr = simple_strtoul(argv[2], NULL, 16);
alen = get_alen(argv[2]);
if (alen == 0)
if (alen > 3)
return cmd_usage(cmdtp);
/*