ALSA: intel8x0 - use snd_pci_quirk for clock list

[linux-2.6-omap-h63xx.git] / drivers / scsi / sg.c

diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index d3b8ebb8377639c92e8e44503aa828554734c055..661f9f21650a57f6361650ec5b685bb01d595da9 100644 (file)
--- 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);
@@ -1747,7 +1760,7 @@ st_map_user_pages(struct scatterlist *sgl, const unsigned int max_pages,
                  */
                flush_dcache_page(pages[i]);
                /* ?? Is locking needed? I don't think so */
-               /* if (TestSetPageLocked(pages[i]))
+               /* if (!trylock_page(pages[i]))
                   goto out_unlock; */
         }