From: Joe Lawrence Date: Wed, 25 Jun 2014 21:04:22 +0000 (-0400) Subject: mpt3sas: correct scsi_{target,device} hostdata allocation X-Git-Tag: v3.17-rc1~100^2~55 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=62c4da449db0c5a605f8bf99c5ca735da0c0587f;p=karo-tx-linux.git mpt3sas: correct scsi_{target,device} hostdata allocation In _scsih_{slave,target}_alloc, an incorrect structure type is passed to sizeof() when allocating storage for hostdata. Luckily larger structure types were used, so at least the wrong sizes were safe: struct scsi_device (1784 bytes) > struct MPT3SAS_DEVICE (24 bytes) struct scsi_target (760 bytes) > struct MPT3SAS_TARGET (32 bytes) This fixes the following smatch warnings: drivers/scsi/mpt3sas/mpt3sas_scsih.c:1166 _scsih_target_alloc() warn: struct type mismatch 'MPT3SAS_TARGET vs scsi_target' drivers/scsi/mpt3sas/mpt3sas_scsih.c:1280 _scsih_slave_alloc() warn: struct type mismatch 'MPT3SAS_DEVICE vs scsi_device' Signed-off-by: Joe Lawrence Acked-by: Sreekanth Reddy Signed-off-by: Christoph Hellwig --- diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c index 0274ac3c533b..08a95b2a2f2e 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c +++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c @@ -1163,7 +1163,8 @@ _scsih_target_alloc(struct scsi_target *starget) unsigned long flags; struct sas_rphy *rphy; - sas_target_priv_data = kzalloc(sizeof(struct scsi_target), GFP_KERNEL); + sas_target_priv_data = kzalloc(sizeof(*sas_target_priv_data), + GFP_KERNEL); if (!sas_target_priv_data) return -ENOMEM; @@ -1277,7 +1278,8 @@ _scsih_slave_alloc(struct scsi_device *sdev) struct _sas_device *sas_device; unsigned long flags; - sas_device_priv_data = kzalloc(sizeof(struct scsi_device), GFP_KERNEL); + sas_device_priv_data = kzalloc(sizeof(*sas_device_priv_data), + GFP_KERNEL); if (!sas_device_priv_data) return -ENOMEM;