add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/tools/testing/selftests/resctrl/fill_buf.c
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@@ -68,6 +68,8 @@
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 	size_t s64;
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 	void *p = memalign(PAGE_SIZE, s);
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+	if (!p)
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+		return NULL;
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 	p64 = (uint64_t *)p;
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 	s64 = s / sizeof(uint64_t);
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@@ -182,12 +184,13 @@
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 	else
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 		ret = fill_cache_write(start_ptr, end_ptr, resctrl_val);
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+	free(startptr);
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+
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 	if (ret) {
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 		printf("\n Error in fill cache read/write...\n");
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 		return -1;
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 	}
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-	free(startptr);
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 	return 0;
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 }