diff options
Diffstat (limited to 'drivers/scsi/sg.c')
| -rw-r--r-- | drivers/scsi/sg.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index 026628aa556d..4c62237cdf37 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -640,13 +640,15 @@ sg_write(struct file *filp, const char __user *buf, size_t count, loff_t * ppos) if (count < (SZ_SG_HEADER + 6)) return -EIO; /* The minimum scsi command length is 6 bytes. */ + buf += SZ_SG_HEADER; + if (__get_user(opcode, buf)) + return -EFAULT; + if (!(srp = sg_add_request(sfp))) { SCSI_LOG_TIMEOUT(1, sg_printk(KERN_INFO, sdp, "sg_write: queue full\n")); return -EDOM; } - buf += SZ_SG_HEADER; - __get_user(opcode, buf); mutex_lock(&sfp->f_mutex); if (sfp->next_cmd_len > 0) { cmd_size = sfp->next_cmd_len; |