Artur Wojcik: Fix for NULL pointer dereference defect.

[Martin F. Krafft]

Module: mdadm
Branch: upstream
Commit: d362da3dfef78f016690e677052b20a163e65236
URL:    http://git.debian.org/?p=pkg-mdadm/mdadm.git;a=commit;h=d362da3dfef78f016690e677052b20a163e65236

Author: Artur Wojcik <artur.wojcik at intel.com>
Date:   Thu Dec 10 12:03:40 2009 -0700

Fix for NULL pointer dereference defect.

Pointer 'disk' returned from call to function '_get_imsm_disk' at line
700 may be NULL and will be dereferenced at line 710.

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, 1 insertions(+), 1 deletions(-)

diff --git a/super-intel.c b/super-intel.c
index a2acaaf..da753a0 100644
--- a/super-intel.c
+++ b/super-intel.c
@@ -703,7 +703,7 @@ static void print_imsm_disk(struct imsm_super *mpb, int index, __u32 reserved)
 	char str[MAX_RAID_SERIAL_LEN + 1];
 	__u64 sz;
 
-	if (index < 0)
+	if (index < 0 || !disk)
 		return;
 
 	printf("\n");