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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-02 02:17:04 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-02 02:17:04 +0300 |
| commit | 4fdea5848b3c7fb13a0bfd7f768dcf15b534dafe (patch) | |
| tree | 5c29b39e734241ae5fc595b53959f0d34033e624 /drivers | |
| parent | e148a8f948afc0b1eeb5c157b23b3d0a4d4517a5 (diff) | |
| parent | ebe6976d3634a311367f72c2402f148ab9f23920 (diff) | |
| download | linux-4fdea5848b3c7fb13a0bfd7f768dcf15b534dafe.tar.xz | |
Merge branch 'uaccess.__put_user' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull uaccess/__put-user updates from Al Viro:
"Removal of __put_user() calls - misc patches that don't fit into any
other series"
* 'uaccess.__put_user' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
pcm_native: result of put_user() needs to be checked
scsi_ioctl.c: switch SCSI_IOCTL_GET_IDLUN to copy_to_user()
compat sysinfo(2): don't bother with field-by-field copyout
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/scsi_ioctl.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/drivers/scsi/scsi_ioctl.c b/drivers/scsi/scsi_ioctl.c index 8f3af87b6bb0..45d04b7b2643 100644 --- a/drivers/scsi/scsi_ioctl.c +++ b/drivers/scsi/scsi_ioctl.c @@ -211,18 +211,18 @@ static int scsi_ioctl_common(struct scsi_device *sdev, int cmd, void __user *arg } switch (cmd) { - case SCSI_IOCTL_GET_IDLUN: - if (!access_ok(arg, sizeof(struct scsi_idlun))) + case SCSI_IOCTL_GET_IDLUN: { + struct scsi_idlun v = { + .dev_id = (sdev->id & 0xff) + + ((sdev->lun & 0xff) << 8) + + ((sdev->channel & 0xff) << 16) + + ((sdev->host->host_no & 0xff) << 24), + .host_unique_id = sdev->host->unique_id + }; + if (copy_to_user(arg, &v, sizeof(struct scsi_idlun))) return -EFAULT; - - __put_user((sdev->id & 0xff) - + ((sdev->lun & 0xff) << 8) - + ((sdev->channel & 0xff) << 16) - + ((sdev->host->host_no & 0xff) << 24), - &((struct scsi_idlun __user *)arg)->dev_id); - __put_user(sdev->host->unique_id, - &((struct scsi_idlun __user *)arg)->host_unique_id); return 0; + } case SCSI_IOCTL_GET_BUS_NUMBER: return put_user(sdev->host->host_no, (int __user *)arg); case SCSI_IOCTL_PROBE_HOST: |