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usb: ums: add error handling for failed registration

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Without this, if g_dnl_register() fails, the UMS code continues on
blindly and crashes. This fix makes it simply print an error message
instead.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
This commit is contained in:
Stephen Warren 2014-05-01 15:42:10 -06:00 committed by Lukasz Majewski
parent 340ed422d2
commit 66b88b07cd
1 changed files with 5 additions and 1 deletions
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6
common/cmd_usb_mass_storage.c
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@ -40,7 +40,11 @@ int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag,
return CMD_RET_FAILURE;
}
g_dnl_register("usb_dnl_ums");
rc = g_dnl_register("usb_dnl_ums");
if (rc) {
error("g_dnl_register failed");
return CMD_RET_FAILURE;
}
/* Timeout unit: seconds */
int cable_ready_timeout = UMS_CABLE_READY_TIMEOUT;