linux-kernel - [PATCH] mm/vmalloc: fix a compile warning in mm

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Date:   Mon, 24 Jun 2019 13:09:37 +0800
From:   Weitao Hou <houweitaoo@...il.com>
To:     akpm@...ux-foundation.org, urezki@...il.com, rpenyaev@...e.de,
        guro@...com, rick.p.edgecombe@...el.com, rppt@...ux.ibm.com,
        aryabinin@...tuozzo.com
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        Weitao Hou <houweitaoo@...il.com>
Subject: [PATCH] mm/vmalloc: fix a compile warning in mm

mm/vmalloc.c: In function ‘pcpu_get_vm_areas’:
mm/vmalloc.c:976:4: warning: ‘lva’ may be used uninitialized in
this function [-Wmaybe-uninitialized]
insert_vmap_area_augment(lva, &va->rb_node,

Signed-off-by: Weitao Hou <houweitaoo@...il.com>
---
 mm/vmalloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 4c9e150e5ad3..78c5617fdf3f 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -913,7 +913,7 @@ adjust_va_to_fit_type(struct vmap_area *va,
 	unsigned long nva_start_addr, unsigned long size,
 	enum fit_type type)
 {
-	struct vmap_area *lva;
+	struct vmap_area *lva = NULL;
 
 	if (type == FL_FIT_TYPE) {
 		/*
-- 
2.18.0