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authorKrzysztof Oledzki <olel@ans.pl>2008-03-04 14:56:23 -0800
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2008-03-05 14:57:57 -0600
commit51f39eae14b4874618e73281c236e3a1c1572d4d (patch)
tree1835811c57a5022f8f0724d00fa57abcf3e744c7 /drivers/message/fusion/mptsas.c
parent45ab33b6c190c4a8c58f1d13be2ff89ee62024ba (diff)
[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>
Diffstat (limited to 'drivers/message/fusion/mptsas.c')
-rw-r--r--drivers/message/fusion/mptsas.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index f77b329f692..78734e25edd 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -1701,6 +1701,11 @@ mptsas_sas_expander_pg0(MPT_ADAPTER *ioc, struct mptsas_portinfo *port_info,
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,