diff options
Diffstat (limited to 'drivers/media/dvb/dvb-core/dvb_demux.c')
| -rw-r--r-- | drivers/media/dvb/dvb-core/dvb_demux.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/drivers/media/dvb/dvb-core/dvb_demux.c b/drivers/media/dvb/dvb-core/dvb_demux.c index 977ddba3e235..4a88a3e4db2b 100644 --- a/drivers/media/dvb/dvb-core/dvb_demux.c +++ b/drivers/media/dvb/dvb-core/dvb_demux.c @@ -1130,13 +1130,9 @@ static int dvbdmx_write(struct dmx_demux *demux, const char __user *buf, size_t if ((!demux->frontend) || (demux->frontend->source != DMX_MEMORY_FE)) return -EINVAL; - p = kmalloc(count, GFP_USER); - if (!p) - return -ENOMEM; - if (copy_from_user(p, buf, count)) { - kfree(p); - return -EFAULT; - } + p = memdup_user(buf, count); + if (IS_ERR(p)) + return PTR_ERR(p); if (mutex_lock_interruptible(&dvbdemux->mutex)) { kfree(p); return -ERESTARTSYS; |