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author | David S. Miller <davem@davemloft.net> | 2008-09-16 14:11:43 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2008-09-16 14:11:43 -0700 |
commit | 2e57572a50a4de41c6cbc879a4866a312d4cd316 (patch) | |
tree | c4f58ec96c06642c4b415b881d3f0a3b673d5b44 /drivers/scsi/sg.c | |
parent | 9b2e43ae4e9609f80034dfe8de895045cac52d77 (diff) | |
parent | f948cc6ab9e61a8e88d70ee9aafc690e6d26f92c (diff) | |
download | op-kernel-dev-2e57572a50a4de41c6cbc879a4866a312d4cd316.zip op-kernel-dev-2e57572a50a4de41c6cbc879a4866a312d4cd316.tar.gz |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
Conflicts:
arch/sparc64/kernel/pci_psycho.c
Diffstat (limited to 'drivers/scsi/sg.c')
-rw-r--r-- | drivers/scsi/sg.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index 3d36270..661f9f2 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -217,6 +217,18 @@ static int sg_last_dev(void); #define SZ_SG_IOVEC sizeof(sg_iovec_t) #define SZ_SG_REQ_INFO sizeof(sg_req_info_t) +static int sg_allow_access(struct file *filp, unsigned char *cmd) +{ + struct sg_fd *sfp = (struct sg_fd *)filp->private_data; + struct request_queue *q = sfp->parentdp->device->request_queue; + + if (sfp->parentdp->device->type == TYPE_SCANNER) + return 0; + + return blk_verify_command(&q->cmd_filter, + cmd, filp->f_mode & FMODE_WRITE); +} + static int sg_open(struct inode *inode, struct file *filp) { @@ -689,7 +701,7 @@ sg_new_write(Sg_fd *sfp, struct file *file, const char __user *buf, sg_remove_request(sfp, srp); return -EFAULT; } - if (read_only && !blk_verify_command(file, cmnd)) { + if (read_only && sg_allow_access(file, cmnd)) { sg_remove_request(sfp, srp); return -EPERM; } @@ -793,6 +805,7 @@ sg_ioctl(struct inode *inode, struct file *filp, if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) return -ENXIO; + SCSI_LOG_TIMEOUT(3, printk("sg_ioctl: %s, cmd=0x%x\n", sdp->disk->disk_name, (int) cmd_in)); read_only = (O_RDWR != (filp->f_flags & O_ACCMODE)); @@ -1061,7 +1074,7 @@ sg_ioctl(struct inode *inode, struct file *filp, if (copy_from_user(&opcode, siocp->data, 1)) return -EFAULT; - if (!blk_verify_command(filp, &opcode)) + if (sg_allow_access(filp, &opcode)) return -EPERM; } return sg_scsi_ioctl(filp, sdp->device->request_queue, NULL, p); |