Hi,
The Coverity checker found a problem in
drivers/scsi/libsas/sas_expander.c::sas_smp_handler().
We dereference a pointer before testing if it is NULL. Easily fixed
in this case by simply moving an assignment down a bit.
Please consider for inclusion.
Patch has been compile tested only.
Signed-off-by: Jesper Juhl <[email protected]>
---
drivers/scsi/libsas/sas_expander.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c
index b500f0c..7871406 100644
--- a/drivers/scsi/libsas/sas_expander.c
+++ b/drivers/scsi/libsas/sas_expander.c
@@ -1879,7 +1879,7 @@ int sas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
struct request *req)
{
struct domain_device *dev;
- int ret, type = rphy->identify.device_type;
+ int ret, type;
struct request *rsp = req->next_rq;
if (!rsp) {
@@ -1895,6 +1895,8 @@ int sas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
return -EINVAL;
}
+ type = rphy->identify.device_type;
+
if (type != SAS_EDGE_EXPANDER_DEVICE &&
type != SAS_FANOUT_EXPANDER_DEVICE) {
printk("%s: can we send a smp request to a device?\n",
PS. Please keep me on Cc when replying.
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