[SCSI] mpt fusion: don't oops if NumPhys==0
Don't oops if NumPhys==0, instead return -ENODEV.
This patch fixes http://bugzilla.kernel.org/show_bug.cgi?id=9909
Signed-off-by: Krzysztof Piotr Oledzki <ole@ans.pl>
Acked-by: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index f77b329..78734e2 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -1701,6 +1701,11 @@
if (error)
goto out_free_consistent;
+ if (!buffer->NumPhys) {
+ error = -ENODEV;
+ goto out_free_consistent;
+ }
+
/* save config data */
port_info->num_phys = buffer->NumPhys;
port_info->phy_info = kcalloc(port_info->num_phys,