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thor: fix crash after usb initialization failure

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Registration of USB download gadget might fail for various reasons, so
add a check for g_dnl_register() funtion return value. Without this fix,
thor_init() will try to access the registered gadget structures resulting
in NULL pointer dereference issue.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
This commit is contained in:
Marek Szyprowski 2019-06-21 15:39:29 +02:00 committed by Marek Vasut
parent 160102d112
commit ed3a37a248
1 changed files with 5 additions and 1 deletions
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6
cmd/thordown.c
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@ -37,7 +37,11 @@ int do_thor_down(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
goto exit;
}
g_dnl_register("usb_dnl_thor");
ret = g_dnl_register("usb_dnl_thor");
if (ret) {
pr_err("g_dnl_register failed %d\n", ret);
return ret;
}
ret = thor_init();
if (ret) {