X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fmedia%2Fdvb%2Fdvb-core%2Fdvb_ringbuffer.c;h=fd04a1f3fb14e4215ccc7a26a0801d55cd3255a8;hb=9bf4aaab3e101692164d49b7ca357651eb691cb6;hp=b8bc3e6c4388c76f55ff6df618de8c773d8cf55b;hpb=5273a3df6485dc2ad6aa7ddd441b9a21970f003b;p=linux-2.6.git diff --git a/drivers/media/dvb/dvb-core/dvb_ringbuffer.c b/drivers/media/dvb/dvb-core/dvb_ringbuffer.c index b8bc3e6c4..fd04a1f3f 100644 --- a/drivers/media/dvb/dvb-core/dvb_ringbuffer.c +++ b/drivers/media/dvb/dvb-core/dvb_ringbuffer.c @@ -133,8 +133,7 @@ ssize_t dvb_ringbuffer_read(struct dvb_ringbuffer *rbuf, u8 *buf, size_t len, in -ssize_t dvb_ringbuffer_write(struct dvb_ringbuffer *rbuf, const u8 *buf, - size_t len, int usermem) +ssize_t dvb_ringbuffer_write(struct dvb_ringbuffer *rbuf, const u8 *buf, size_t len) { size_t todo = len; size_t split; @@ -142,28 +141,18 @@ ssize_t dvb_ringbuffer_write(struct dvb_ringbuffer *rbuf, const u8 *buf, split = (rbuf->pwrite + len > rbuf->size) ? rbuf->size - rbuf->pwrite : 0; if (split > 0) { - if (!usermem) - memcpy(rbuf->data+rbuf->pwrite, buf, split); - else - if (copy_from_user(rbuf->data+rbuf->pwrite, - buf, split)) - return -EFAULT; + memcpy(rbuf->data+rbuf->pwrite, buf, split); buf += split; todo -= split; rbuf->pwrite = 0; } - if (!usermem) - memcpy(rbuf->data+rbuf->pwrite, buf, todo); - else - if (copy_from_user(rbuf->data+rbuf->pwrite, buf, todo)) - return -EFAULT; - + memcpy(rbuf->data+rbuf->pwrite, buf, todo); rbuf->pwrite = (rbuf->pwrite + todo) % rbuf->size; return len; } -ssize_t dvb_ringbuffer_pkt_write(struct dvb_ringbuffer *rbuf, u8* buf, size_t len, int usermem) +ssize_t dvb_ringbuffer_pkt_write(struct dvb_ringbuffer *rbuf, u8* buf, size_t len) { int status; ssize_t oldpwrite = rbuf->pwrite; @@ -171,7 +160,7 @@ ssize_t dvb_ringbuffer_pkt_write(struct dvb_ringbuffer *rbuf, u8* buf, size_t le DVB_RINGBUFFER_WRITE_BYTE(rbuf, len >> 8); DVB_RINGBUFFER_WRITE_BYTE(rbuf, len & 0xff); DVB_RINGBUFFER_WRITE_BYTE(rbuf, PKT_READY); - status = dvb_ringbuffer_write(rbuf, buf, len, usermem); + status = dvb_ringbuffer_write(rbuf, buf, len); if (status < 0) rbuf->pwrite = oldpwrite; return status;