[PATCH] Fixup blk_rq_unmap_user() API

[firefly-linux-kernel-4.4.55.git] / drivers / cdrom / cdrom.c

diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
index 2a0c50d84fc513842aedb86caf313e64cb9d11b9..66d028d304390877530c31b2dda46a24af84c88a 100644 (file)
--- a/drivers/cdrom/cdrom.c
+++ b/drivers/cdrom/cdrom.c
@@ -703,7 +703,7 @@ static int cdrom_has_defect_mgt(struct cdrom_device_info *cdi)
 {
        struct packet_command cgc;
        char buffer[16];
-       __u16 *feature_code;
+       __be16 *feature_code;
        int ret;
 
        init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_READ);
@@ -716,7 +716,7 @@ static int cdrom_has_defect_mgt(struct cdrom_device_info *cdi)
        if ((ret = cdi->ops->generic_packet(cdi, &cgc)))
                return ret;
 
-       feature_code = (__u16 *) &buffer[sizeof(struct feature_header)];
+       feature_code = (__be16 *) &buffer[sizeof(struct feature_header)];
        if (be16_to_cpu(*feature_code) == CDF_HWDM)
                return 0;
 
@@ -1810,7 +1810,7 @@ static int dvd_read_disckey(struct cdrom_device_info *cdi, dvd_struct *s)
 
        size = sizeof(s->disckey.value) + 4;
 
-       if ((buf = (u_char *) kmalloc(size, GFP_KERNEL)) == NULL)
+       if ((buf = kmalloc(size, GFP_KERNEL)) == NULL)
                return -ENOMEM;
 
        init_cdrom_command(&cgc, buf, size, CGC_DATA_READ);
@@ -1861,7 +1861,7 @@ static int dvd_read_manufact(struct cdrom_device_info *cdi, dvd_struct *s)
 
        size = sizeof(s->manufact.value) + 4;
 
-       if ((buf = (u_char *) kmalloc(size, GFP_KERNEL)) == NULL)
+       if ((buf = kmalloc(size, GFP_KERNEL)) == NULL)
                return -ENOMEM;
 
        init_cdrom_command(&cgc, buf, size, CGC_DATA_READ);
@@ -2133,16 +2133,13 @@ static int cdrom_read_cdda_bpc(struct cdrom_device_info *cdi, __u8 __user *ubuf,
                rq->timeout = 60 * HZ;
                bio = rq->bio;
 
-               if (rq->bio)
-                       blk_queue_bounce(q, &rq->bio);
-
                if (blk_execute_rq(q, cdi->disk, rq, 0)) {
                        struct request_sense *s = rq->sense;
                        ret = -EIO;
                        cdi->last_sense = s->sense_key;
                }
 
-               if (blk_rq_unmap_user(bio, len))
+               if (blk_rq_unmap_user(bio))
                        ret = -EFAULT;
 
                if (ret)
@@ -2851,7 +2848,7 @@ static int mmc_ioctl(struct cdrom_device_info *cdi, unsigned int cmd,
                /* FIXME: we need upper bound checking, too!! */
                if (lba < 0)
                        return -EINVAL;
-               cgc.buffer = (char *) kmalloc(blocksize, GFP_KERNEL);
+               cgc.buffer = kmalloc(blocksize, GFP_KERNEL);
                if (cgc.buffer == NULL)
                        return -ENOMEM;
                memset(&sense, 0, sizeof(sense));
@@ -2963,7 +2960,7 @@ static int mmc_ioctl(struct cdrom_device_info *cdi, unsigned int cmd,
                   how much data is available for transfer. buffer[1] is
                   unfortunately ambigious and the only reliable way seem
                   to be to simply skip over the block descriptor... */
-               offset = 8 + be16_to_cpu(*(unsigned short *)(buffer+6));
+               offset = 8 + be16_to_cpu(*(__be16 *)(buffer+6));
 
                if (offset + 16 > sizeof(buffer))
                        return -E2BIG;
@@ -3033,7 +3030,7 @@ static int mmc_ioctl(struct cdrom_device_info *cdi, unsigned int cmd,
                int size = sizeof(dvd_struct);
                if (!CDROM_CAN(CDC_DVD))
                        return -ENOSYS;
-               if ((s = (dvd_struct *) kmalloc(size, GFP_KERNEL)) == NULL)
+               if ((s = kmalloc(size, GFP_KERNEL)) == NULL)
                        return -ENOMEM;
                cdinfo(CD_DO_IOCTL, "entering DVD_READ_STRUCT\n"); 
                if (copy_from_user(s, (dvd_struct __user *)arg, size)) {