Kalle Valo <kv...@qca.qualcomm.com> writes:
> + ret = copy_from_user(buf, user_buf, count);
> + if (ret)
> + goto err_free_copy;
> +
> + ret = ath10k_hif_diag_write(ar, *ppos, buf, count);
> + if (ret) {
> + ath10k_warn(ar, "failed to write address 0x%08x via diagnose
> window from debugfs: %d\n",
> + (u32)(*ppos), ret);
> + goto err_free_copy;
> + }
> +
> + *ppos += count;
> + ret = count;
> +
> +err_free_copy:
> + vfree(buf);
> + return ret;
This introduces a new smatch warning:
drivers/net/wireless/ath/ath10k/debug.c:1100 ath10k_mem_value_write()
warn: maybe return -EFAULT instead of the bytes remaining?
I think it should be like this:
ret = copy_from_user(buf, user_buf, count);
if (ret) {
ret = -EFAULT;
goto err_free_copy;
}
Comments?
--
Kalle Valo
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