From: Nicholas Bellinger <[email protected]> This patch allows target_sense_desc_format() to be called without a valid se_device pointer, which can occur during an early exception ahead of transport_lookup_cmd_lun() setting up se_cmd->se_device.
This addresses a v4.3-rc1 specific NULL pointer dereference regression introduced by commit 4e4937e8. Cc: Sagi Grimberg <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Hannes Reinecke <[email protected]> Signed-off-by: Nicholas Bellinger <[email protected]> --- drivers/target/target_core_hba.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/target/target_core_hba.c b/drivers/target/target_core_hba.c index 9522960..22390e0 100644 --- a/drivers/target/target_core_hba.c +++ b/drivers/target/target_core_hba.c @@ -187,5 +187,5 @@ core_delete_hba(struct se_hba *hba) bool target_sense_desc_format(struct se_device *dev) { - return dev->transport->get_blocks(dev) > U32_MAX; + return (dev) ? dev->transport->get_blocks(dev) > U32_MAX : false; } -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
