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| author | David S. Miller <davem@davemloft.net> | 2016-01-13 00:21:27 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-01-13 00:21:27 -0500 |
| commit | ddb5388ffd0ad75d07e7b78181a0b579824ba6f0 (patch) | |
| tree | be1e2bd103c69d7bbace3fffd97bc3d714bbc3d7 /drivers/cdrom/cdrom.c | |
| parent | ccdf6ce6a8dba374668ae9b4d763e19903611c38 (diff) | |
| parent | 67990608c8b95d2b8ccc29932376ae73d5818727 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
Diffstat (limited to 'drivers/cdrom/cdrom.c')
| -rw-r--r-- | drivers/cdrom/cdrom.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c index c206ccda899b..1b257ea9776a 100644 --- a/drivers/cdrom/cdrom.c +++ b/drivers/cdrom/cdrom.c @@ -3186,15 +3186,11 @@ static noinline int mmc_ioctl_dvd_read_struct(struct cdrom_device_info *cdi, if (!CDROM_CAN(CDC_DVD)) return -ENOSYS; - s = kmalloc(size, GFP_KERNEL); - if (!s) - return -ENOMEM; + s = memdup_user(arg, size); + if (IS_ERR(s)) + return PTR_ERR(s); cd_dbg(CD_DO_IOCTL, "entering DVD_READ_STRUCT\n"); - if (copy_from_user(s, arg, size)) { - kfree(s); - return -EFAULT; - } ret = dvd_read_struct(cdi, s, cgc); if (ret) |