[PATCH] checkpatch: Add check for array allocator family argument order

[Liao Chang]

These array allocator family are sometimes misused with the first and
second arguments switchted.

Same issue with calloc, kvcalloc, kvmalloc_array etc.

Bleat if sizeof is the first argument.

Link: https://lkml.org/lkml/2022/11/3/668
Signed-off-by: Liao Chang <liaochang1@xxxxxxxxxx>
---
 scripts/checkpatch.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 1e5e66ae5a52..a9a9dc277cff 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -7128,7 +7128,7 @@ sub process {
 		}
 
 # check for alloc argument mismatch
-		if ($line =~ /\b((?:devm_)?(?:kcalloc|kmalloc_array))\s*\(\s*sizeof\b/) {
+		if ($line =~ /\b((?:devm_)?((?:k|kv)?(calloc|malloc_array)(?:_node)?))\s*\(\s*sizeof\b/) {
 			WARN("ALLOC_ARRAY_ARGS",
 			     "$1 uses number as first arg, sizeof is generally wrong\n" . $herecurr);
 		}
-- 
2.17.1