linux-kernel - [PATCH 1/1] scripts: Fixing NULL pointer dereference when pos->file is NULL

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Date:   Tue, 29 Nov 2016 16:04:59 +0530
From:   Maninder Singh <maninder1.s@...sung.com>
To:     robh+dt@...nel.org, rowand.list@...il.com
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        v.narang@...sung.com, pankaj.m@...sung.com, ajeet.y@...sung.com,
        Maninder Singh <maninder1.s@...sung.com>
Subject: [PATCH 1/1] scripts: Fixing NULL pointer dereference when pos->file is
 NULL

This patch fixes NULL pointer dereference when pos->file is NULL.

caught with static analysis tool.
Signed-off-by: Maninder Singh <maninder1.s@...sung.com>
Signed-off-by: Vaneet Narang <v.narang@...sung.com>
---
 scripts/dtc/srcpos.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/scripts/dtc/srcpos.c b/scripts/dtc/srcpos.c
index f534c22..360fd14 100644
--- a/scripts/dtc/srcpos.c
+++ b/scripts/dtc/srcpos.c
@@ -252,12 +252,11 @@ struct srcpos *
 srcpos_dump(struct srcpos *pos)
 {
 	printf("file        : \"%s\"\n",
-	       pos->file ? (char *) pos->file : "<no file>");
+	       pos->file ?  pos->file->name : "<no file>");
 	printf("first_line  : %d\n", pos->first_line);
 	printf("first_column: %d\n", pos->first_column);
 	printf("last_line   : %d\n", pos->last_line);
 	printf("last_column : %d\n", pos->last_column);
-	printf("file        : %s\n", pos->file->name);
 }
 
 
-- 
1.9.1