Artur Wojcik: Fix for NULL pointer dereference defect.

[Martin F. Krafft]

Module: mdadm
Branch: upstream
Commit: 4e9d21862d0fbea7e028ff3a48a0b734440e6015
URL:    http://git.debian.org/?p=pkg-mdadm/mdadm.git;a=commit;h=4e9d21862d0fbea7e028ff3a48a0b734440e6015

Author: Artur Wojcik <artur.wojcik at intel.com>
Date:   Thu Dec 10 12:03:39 2009 -0700

Fix for NULL pointer dereference defect.

Pointer 'st' returned from call to function 'malloc' at line 320 may
be NULL and it will be dereferenced at line 321.

Signed-off-by: Artur Wojcik <artur.wojcik at intel.com>
Signed-off-by: Dan Williams <dan.j.williams at intel.com>

---

 super-intel.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/super-intel.c b/super-intel.c
index cf6288f..a2acaaf 100644
--- a/super-intel.c
+++ b/super-intel.c
@@ -318,6 +318,8 @@ static struct supertype *match_metadata_desc_imsm(char *arg)
 		return NULL;
 
 	st = malloc(sizeof(*st));
+	if (!st)
+		return NULL;
 	memset(st, 0, sizeof(*st));
 	st->ss = &super_imsm;
 	st->max_devs = IMSM_MAX_DEVICES;