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s390/crashdump: use list_first_entry_or_null
The combo of list_empty() check and return list_first_entry() can be replaced with list_first_entry_or_null(). Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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1 changed files with 1 additions and 3 deletions
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@ -71,9 +71,7 @@ struct save_area * __init save_area_alloc(bool is_boot_cpu)
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*/
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struct save_area * __init save_area_boot_cpu(void)
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{
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if (list_empty(&dump_save_areas))
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return NULL;
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return list_first_entry(&dump_save_areas, struct save_area, list);
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return list_first_entry_or_null(&dump_save_areas, struct save_area, list);
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}
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/*
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