diff options
| author | Shivasharan S <shivasharan.srikanteshwara@broadcom.com> | 2017-02-10 11:59:22 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-02-13 15:26:22 +0300 |
| commit | 318aaef88353c09a73d26d3b87a74fab67ff9282 (patch) | |
| tree | f4d5e112e094a7711f6650c5903142eb665f8f97 /drivers/scsi/megaraid | |
| parent | a174118b7a97c52c3c3a4f1b8eee594502a55381 (diff) | |
| download | linux-318aaef88353c09a73d26d3b87a74fab67ff9282.tar.xz | |
scsi: megaraid_sas: avoid unaligned access in ioctl path
Fix kernel warning for accessing unaligned memory access in driver.
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/megaraid')
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas_base.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index b2da25764261..5d7aa05c0a9c 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -43,6 +43,7 @@ #include <linux/uio.h> #include <linux/slab.h> #include <linux/uaccess.h> +#include <asm/unaligned.h> #include <linux/fs.h> #include <linux/compat.h> #include <linux/blkdev.h> @@ -7007,7 +7008,8 @@ megasas_mgmt_fw_ioctl(struct megasas_instance *instance, sense_ptr = (unsigned long *) ((unsigned long)ioc->frame.raw + ioc->sense_off); - if (copy_to_user((void __user *)((unsigned long)(*sense_ptr)), + if (copy_to_user((void __user *)((unsigned long) + get_unaligned((unsigned long *)sense_ptr)), sense, ioc->sense_len)) { dev_err(&instance->pdev->dev, "Failed to copy out to user " "sense data\n"); |