Kalle Valo <kvalo@xxxxxxxxxxxxxxxx> 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 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html