diff options
Diffstat (limited to 'drivers/staging/media/lirc/lirc_zilog.c')
| -rw-r--r-- | drivers/staging/media/lirc/lirc_zilog.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/drivers/staging/media/lirc/lirc_zilog.c b/drivers/staging/media/lirc/lirc_zilog.c index e1feb6164593..3259aacfd350 100644 --- a/drivers/staging/media/lirc/lirc_zilog.c +++ b/drivers/staging/media/lirc/lirc_zilog.c @@ -892,7 +892,8 @@ out: } /* copied from lirc_dev */ -static ssize_t read(struct file *filep, char *outbuf, size_t n, loff_t *ppos) +static ssize_t read(struct file *filep, char __user *outbuf, size_t n, + loff_t *ppos) { struct IR *ir = filep->private_data; struct IR_rx *rx; @@ -954,7 +955,7 @@ static ssize_t read(struct file *filep, char *outbuf, size_t n, loff_t *ppos) } m = lirc_buffer_read(rbuf, buf); if (m == rbuf->chunk_size) { - ret = copy_to_user((void *)outbuf+written, buf, + ret = copy_to_user(outbuf + written, buf, rbuf->chunk_size); written += rbuf->chunk_size; } else { @@ -1094,8 +1095,8 @@ static int send_code(struct IR_tx *tx, unsigned int code, unsigned int key) * sent to the device. We have a spin lock as per i2c documentation to prevent * multiple concurrent sends which would probably cause the device to explode. */ -static ssize_t write(struct file *filep, const char *buf, size_t n, - loff_t *ppos) +static ssize_t write(struct file *filep, const char __user *buf, size_t n, + loff_t *ppos) { struct IR *ir = filep->private_data; struct IR_tx *tx; @@ -1237,6 +1238,7 @@ static unsigned int poll(struct file *filep, poll_table *wait) static long ioctl(struct file *filep, unsigned int cmd, unsigned long arg) { struct IR *ir = filep->private_data; + unsigned long __user *uptr = (unsigned long __user *)arg; int result; unsigned long mode, features; @@ -1244,11 +1246,10 @@ static long ioctl(struct file *filep, unsigned int cmd, unsigned long arg) switch (cmd) { case LIRC_GET_LENGTH: - result = put_user((unsigned long)13, - (unsigned long *)arg); + result = put_user(13UL, uptr); break; case LIRC_GET_FEATURES: - result = put_user(features, (unsigned long *) arg); + result = put_user(features, uptr); break; case LIRC_GET_REC_MODE: if (!(features&LIRC_CAN_REC_MASK)) @@ -1256,13 +1257,13 @@ static long ioctl(struct file *filep, unsigned int cmd, unsigned long arg) result = put_user(LIRC_REC2MODE (features&LIRC_CAN_REC_MASK), - (unsigned long *)arg); + uptr); break; case LIRC_SET_REC_MODE: if (!(features&LIRC_CAN_REC_MASK)) return -ENOSYS; - result = get_user(mode, (unsigned long *)arg); + result = get_user(mode, uptr); if (!result && !(LIRC_MODE2REC(mode) & features)) result = -EINVAL; break; @@ -1270,13 +1271,13 @@ static long ioctl(struct file *filep, unsigned int cmd, unsigned long arg) if (!(features&LIRC_CAN_SEND_MASK)) return -ENOSYS; - result = put_user(LIRC_MODE_PULSE, (unsigned long *) arg); + result = put_user(LIRC_MODE_PULSE, uptr); break; case LIRC_SET_SEND_MODE: if (!(features&LIRC_CAN_SEND_MASK)) return -ENOSYS; - result = get_user(mode, (unsigned long *) arg); + result = get_user(mode, uptr); if (!result && mode != LIRC_MODE_PULSE) return -EINVAL; break; |