From: KAMBAROV, ZAUR <kambarov@berkeley.edu>
Date: Wed, 29 Jun 2005 03:45:10 +0000 (-0700)
Subject: [PATCH] coverity: fs/udf/namei.c null check
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=ec471dc484b8ca5352903ee28796b8b248313547;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

[PATCH] coverity: fs/udf/namei.c null check

"dir" was dereferenced before null check

Signed-off-by: Zaur Kambarov <zkambarov@coverity.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/fs/udf/namei.c b/fs/udf/namei.c
index 3f6dc7112bc..4673157b262 100644
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
@@ -159,7 +159,7 @@ udf_find_entry(struct inode *dir, struct dentry *dentry,
 	char *nameptr;
 	uint8_t lfi;
 	uint16_t liu;
-	loff_t size = (udf_ext0_offset(dir) + dir->i_size) >> 2;
+	loff_t size;
 	kernel_lb_addr bloc, eloc;
 	uint32_t extoffset, elen, offset;
 	struct buffer_head *bh = NULL;
@@ -167,6 +167,8 @@ udf_find_entry(struct inode *dir, struct dentry *dentry,
 	if (!dir)
 		return NULL;
 
+	size = (udf_ext0_offset(dir) + dir->i_size) >> 2;
+
 	f_pos = (udf_ext0_offset(dir) >> 2);
 
 	fibh->soffset = fibh->eoffset = (f_pos & ((dir->i_sb->s_blocksize - 1) >> 2)) << 2;