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authorYang, Bo <Bo.Yang@lsi.com>2009-10-06 14:52:20 -0600
committerJames Bottomley <James.Bottomley@suse.de>2009-10-29 13:03:21 -0400
commit7b2519afa1abd1b9f63aa1e90879307842422dae (patch)
tree39ed8395471eb79e5016e8d3878d489d0d2b81b7 /drivers/scsi/megaraid
parent7e8a75f4dfbff173977b2f58799c3eceb7b09afd (diff)
[SCSI] megaraid_sas: fix 64 bit sense pointer truncation
The current sense pointer is cast to a u32 pointer, which can truncate on 64 bits. Fix by using unsigned long instead. Signed-off-by Bo Yang<bo.yang@lsi.com> Cc: stable@kernel.org Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/megaraid')
-rw-r--r--drivers/scsi/megaraid/megaraid_sas.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas.c b/drivers/scsi/megaraid/megaraid_sas.c
index b0d6991cb6f..23056721a8c 100644
--- a/drivers/scsi/megaraid/megaraid_sas.c
+++ b/drivers/scsi/megaraid/megaraid_sas.c
@@ -3515,7 +3515,7 @@ megasas_mgmt_fw_ioctl(struct megasas_instance *instance,
int error = 0, i;
void *sense = NULL;
dma_addr_t sense_handle;
- u32 *sense_ptr;
+ unsigned long *sense_ptr;
memset(kbuff_arr, 0, sizeof(kbuff_arr));
@@ -3593,7 +3593,7 @@ megasas_mgmt_fw_ioctl(struct megasas_instance *instance,
}
sense_ptr =
- (u32 *) ((unsigned long)cmd->frame + ioc->sense_off);
+ (unsigned long *) ((unsigned long)cmd->frame + ioc->sense_off);
*sense_ptr = sense_handle;
}
@@ -3624,8 +3624,8 @@ megasas_mgmt_fw_ioctl(struct megasas_instance *instance,
* sense_ptr points to the location that has the user
* sense buffer address
*/
- sense_ptr = (u32 *) ((unsigned long)ioc->frame.raw +
- ioc->sense_off);
+ sense_ptr = (unsigned long *) ((unsigned long)ioc->frame.raw +
+ ioc->sense_off);
if (copy_to_user((void __user *)((unsigned long)(*sense_ptr)),
sense, ioc->sense_len)) {