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| author | Joe Lawrence <joe.lawrence@stratus.com> | 2014-06-25 17:03:14 -0400 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2014-07-25 17:16:56 -0400 |
| commit | feafe7c596f62123e1d24f1399e1d40c61e9d9d6 (patch) | |
| tree | 3bbef29d58a741b19bbc5c25b33d73e3dc3170b1 /drivers/scsi/mpt2sas/mpt2sas_scsih.c | |
| parent | 4bfaa5c4b99ddec00907e854d70453bd2aef39a0 (diff) | |
| download | blackbird-op-linux-feafe7c596f62123e1d24f1399e1d40c61e9d9d6.tar.gz blackbird-op-linux-feafe7c596f62123e1d24f1399e1d40c61e9d9d6.zip | |
mpt2sas: 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 MPT2SAS_DEVICE (24 bytes)
struct scsi_target (760 bytes) > struct MPT2SAS_TARGET (40 bytes)
This fixes the following smatch warnings:
drivers/scsi/mpt2sas/mpt2sas_scsih.c:1295 _scsih_target_alloc()
warn: struct type mismatch 'MPT2SAS_TARGET vs scsi_target'
drivers/scsi/mpt2sas/mpt2sas_scsih.c:1409 _scsih_slave_alloc()
warn: struct type mismatch 'MPT2SAS_DEVICE vs scsi_device'
Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com>
Acked-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/scsi/mpt2sas/mpt2sas_scsih.c')
| -rw-r--r-- | drivers/scsi/mpt2sas/mpt2sas_scsih.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c index 5055f925d2cd..13e49c31d19b 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -1292,7 +1292,8 @@ _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; @@ -1406,7 +1407,8 @@ _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; |
