diff options
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/applicom.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/drivers/char/applicom.c b/drivers/char/applicom.c index 63313a33ba5..f4ae0e0fb63 100644 --- a/drivers/char/applicom.c +++ b/drivers/char/applicom.c @@ -703,14 +703,9 @@ static long ac_ioctl(struct file *file, unsigned int cmd, unsigned long arg) /* In general, the device is only openable by root anyway, so we're not particularly concerned that bogus ioctls can flood the console. */ - adgl = kmalloc(sizeof(struct st_ram_io), GFP_KERNEL); - if (!adgl) - return -ENOMEM; - - if (copy_from_user(adgl, argp, sizeof(struct st_ram_io))) { - kfree(adgl); - return -EFAULT; - } + adgl = memdup_user(argp, sizeof(struct st_ram_io)); + if (IS_ERR(adgl)) + return PTR_ERR(adgl); lock_kernel(); IndexCard = adgl->num_card-1; |