| 67,7 → 67,11 |
|---|
| |
| #include <linux/sched.h> |
| #include <linux/fs.h> |
| #include <linux/mutex.h> |
| #if HAVE_UNLOCKED_IOCTL |
| #include <linux/mutex.h> |
| #else |
| #include <linux/smp_lock.h> |
| #endif |
| |
| |
| #include "fops.h" |
| 726,9 → 730,9 |
|---|
| |
| // check for accessible user buffer |
| if (_IOC_DIR(cmd) & _IOC_READ) |
| err = !access_ok( (void *)arg, _IOC_SIZE(cmd)); |
| err = !access_ok(VERIFY_WRITE, (void *)arg, _IOC_SIZE(cmd)); |
| if (_IOC_DIR(cmd) & _IOC_WRITE) |
| err = !access_ok( (void *)arg, _IOC_SIZE(cmd)); |
| err = !access_ok(VERIFY_READ, (void *)arg, _IOC_SIZE(cmd)); |
| if (err) |
| return -EFAULT; |
| |
| 808,14 → 812,22 |
|---|
| long retval=0; |
| |
| |
| #if HAVE_UNLOCKED_IOCTL |
| struct mutex fs_mutex; |
| mutex_init(&fs_mutex); |
| mutex_lock(&fs_mutex); |
| #else |
| lock_kernel(); |
| #endif |
| |
| PRINTK(KERN_DEBUG "%s : pcivme_unlocked_ioctl(0x%08x), size = %d\n", DEVICE_NAME, cmd, _IOC_SIZE(cmd)); |
| retval = pcivme_ioctl(NULL, pFile, cmd,arg); |
| |
| #if HAVE_UNLOCKED_IOCTL |
| mutex_unlock(&fs_mutex); |
| #else |
| unlock_kernel(); |
| #endif |
| |
| return retval; |
| } |
| 945,7 → 957,7 |
|---|
| return -EFAULT; |
| |
| // check for free access to user buffer |
| if (!access_ok( pcBuffer, count)) |
| if (!access_ok(VERIFY_WRITE, pcBuffer, count)) |
| return -EFAULT; |
| |
| // do I still have the same modifier? |
| 987,7 → 999,7 |
|---|
| return -EFAULT; |
| |
| // check for free access to user buffer |
| if (!access_ok( pcBuffer, count)) |
| if (!access_ok(VERIFY_READ, pcBuffer, count)) |
| return -EFAULT; |
| |
| // do I still have the same modifier? |