修改内核路径

hc

2024-05-14 bedbef8ad3e75a304af6361af235302bcc61d06b

 kernel/drivers/net/wireless/realtek/rtlwifi/debug.c
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@@ -278,8 +278,8 @@
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 	tmp_len = (count > sizeof(tmp) - 1 ? sizeof(tmp) - 1 : count);
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-	if (!buffer || copy_from_user(tmp, buffer, tmp_len))
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-		return count;
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+	if (copy_from_user(tmp, buffer, tmp_len))
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+		return -EFAULT;
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 	tmp[tmp_len] = '\0';
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@@ -287,7 +287,7 @@
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 	num = sscanf(tmp, "%x %x %x", &addr, &val, &len);
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 	if (num !=  3)
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-		return count;
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+		return -EINVAL;
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 	switch (len) {
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 	case 1:
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@@ -375,8 +375,8 @@
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 	tmp_len = (count > sizeof(tmp) - 1 ? sizeof(tmp) - 1 : count);
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-	if (!buffer || copy_from_user(tmp, buffer, tmp_len))
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-		return count;
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+	if (copy_from_user(tmp, buffer, tmp_len))
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+		return -EFAULT;
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 	tmp[tmp_len] = '\0';
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@@ -386,7 +386,7 @@
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 	if (num != 4) {
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 		rtl_dbg(rtlpriv, COMP_ERR, DBG_DMESG,
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 			"Format is <path> <addr> <mask> <data>\n");
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-		return count;
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+		return -EINVAL;
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 	}
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 	rtl_set_rfreg(hw, path, addr, bitmask, data);