From: Liam R. Howlett <Liam.Howlett@oracle.com>
Date: Thu, 1 Sep 2022 20:27:51 +0000 (-0400)
Subject: maple_tree: Use MAS_WR_BUG_ON() in mas_store_prealloc()
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=431e0038e27762ddee42197f38cc7e303efe55dc;p=users%2Fjedix%2Flinux-maple.git

maple_tree: Use MAS_WR_BUG_ON() in mas_store_prealloc()

mas_store_prealloc() should never fail, but if it does due to internal
tree issues then get as much debug information as possible prior to
crashing the kernel.

Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
---

diff --git a/lib/maple_tree.c b/lib/maple_tree.c
index ac24a4f3b03c..eacbc720c619 100644
--- a/lib/maple_tree.c
+++ b/lib/maple_tree.c
@@ -5762,7 +5762,7 @@ void mas_store_prealloc(struct ma_state *mas, void *entry)
 	mas_wr_store_setup(&wr_mas);
 	trace_ma_write(__func__, mas, 0, entry);
 	mas_wr_store_entry(&wr_mas);
-	BUG_ON(mas_is_err(mas));
+	MAS_WR_BUG_ON(&wr_mas, mas_is_err(mas));
 	mas_destroy(mas);
 }
 EXPORT_SYMBOL_GPL(mas_store_prealloc);