lkml.org 
[lkml]   [2014]   [May]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] staging: lustre: lustre: lov: lov_obd.c: Fix for possible null pointer dereference
Date
There is otherwise a risk of a possible null pointer dereference.

Was largely found by using a static code analysis program called cppcheck.

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
---
drivers/staging/lustre/lustre/lov/lov_obd.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/lustre/lustre/lov/lov_obd.c b/drivers/staging/lustre/lustre/lov/lov_obd.c
index 02509d0..0364c16 100644
--- a/drivers/staging/lustre/lustre/lov/lov_obd.c
+++ b/drivers/staging/lustre/lustre/lov/lov_obd.c
@@ -280,7 +280,7 @@ static int lov_disconnect_obd(struct obd_device *obd, struct lov_tgt_desc *tgt)

osc_obd = class_exp2obd(tgt->ltd_exp);
CDEBUG(D_CONFIG, "%s: disconnecting target %s\n",
- obd->obd_name, osc_obd->obd_name);
+ obd->obd_name, osc_obd ? osc_obd->obd_name : "NULL");

if (tgt->ltd_active) {
tgt->ltd_active = 0;
@@ -288,11 +288,11 @@ static int lov_disconnect_obd(struct obd_device *obd, struct lov_tgt_desc *tgt)
tgt->ltd_exp->exp_obd->obd_inactive = 1;
}

- lov_proc_dir = obd->obd_proc_private;
- if (lov_proc_dir)
- lprocfs_remove_proc_entry(osc_obd->obd_name, lov_proc_dir);
-
if (osc_obd) {
+ lov_proc_dir = obd->obd_proc_private;
+ if (lov_proc_dir) {
+ lprocfs_remove_proc_entry(osc_obd->obd_name, lov_proc_dir);
+ }
/* Pass it on to our clients.
* XXX This should be an argument to disconnect,
* XXX not a back-door flag on the OBD. Ah well.
--
1.7.10.4


\
 
 \ /
  Last update: 2014-05-20 00:21    [W:0.027 / U:3.316 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site