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common: mii: Do not allow to exceed max phy limit 

Phy can have addresses 0-31. Check this boundary to ensure that user
can't call commands on phy address 32 and more.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Michal Simek 2015-10-19 15:13:34 +02:00
parent f3bd72801a
commit bdaeb8f23c
1 changed files with 5 additions and 0 deletions
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5
common/cmd_mii.c
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@ -314,6 +314,11 @@ static int do_mii(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
mask = simple_strtoul(argv[5], NULL, 16); mask = simple_strtoul(argv[5], NULL, 16);
} }
if (addrhi > 31) {
printf("Incorrect PHY address. Range should be 0-31\n");
return CMD_RET_USAGE;
}
/* use current device */ /* use current device */
devname = miiphy_get_current_dev(); devname = miiphy_get_current_dev();