write in 30M

hc

2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc

 kernel/drivers/hwtracing/intel_th/pti.c
..
..
@@ -272,19 +272,17 @@
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 			      const char *buf, size_t size)
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 {
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 	struct pti_device *pti = dev_get_drvdata(dev);
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-	ssize_t ret = -EINVAL;
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 	int i;
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-	for (i = 0; i < ARRAY_SIZE(lpp_dest_str); i++)
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-		if (sysfs_streq(buf, lpp_dest_str[i]))
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-			break;
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+	i = sysfs_match_string(lpp_dest_str, buf);
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+	if (i < 0)
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+		return i;
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-	if (i < ARRAY_SIZE(lpp_dest_str) && pti->lpp_dest_mask & BIT(i)) {
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-		pti->lpp_dest = i;
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-		ret = size;
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-	}
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+	if (!(pti->lpp_dest_mask & BIT(i)))
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+		return -EINVAL;
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-	return ret;
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+	pti->lpp_dest = i;
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+	return size;
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 }
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 static DEVICE_ATTR_RW(lpp_dest);