diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c index c16200c88417..851f128eba22 100644 --- a/drivers/media/v4l2-core/v4l2-async.c +++ b/drivers/media/v4l2-core/v4l2-async.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include #include @@ -210,7 +211,7 @@ void v4l2_async_notifier_unregister(struct v4l2_async_notifier *notifier) if (!notifier->v4l2_dev) return; - dev = kmalloc_array(n_subdev, sizeof(*dev), GFP_KERNEL); + dev = kvmalloc_array(n_subdev, sizeof(*dev), GFP_KERNEL); if (!dev) { dev_err(notifier->v4l2_dev->dev, "Failed to allocate device cache!\n"); @@ -266,7 +267,7 @@ void v4l2_async_notifier_unregister(struct v4l2_async_notifier *notifier) } put_device(d); } - kfree(dev); + kvfree(dev); notifier->v4l2_dev = NULL; diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c index 36eede3ff098..dd1db678718c 100644 --- a/drivers/media/v4l2-core/v4l2-ctrls.c +++ b/drivers/media/v4l2-core/v4l2-ctrls.c @@ -19,6 +19,7 @@ */ #include +#include #include #include #include @@ -1746,8 +1747,9 @@ int v4l2_ctrl_handler_init_class(struct v4l2_ctrl_handler *hdl, INIT_LIST_HEAD(&hdl->ctrls); INIT_LIST_HEAD(&hdl->ctrl_refs); hdl->nr_of_buckets = 1 + nr_of_controls_hint / 8; - hdl->buckets = kcalloc(hdl->nr_of_buckets, sizeof(hdl->buckets[0]), - GFP_KERNEL); + hdl->buckets = kvmalloc_array(hdl->nr_of_buckets, + sizeof(hdl->buckets[0]), + GFP_KERNEL | __GFP_ZERO); hdl->error = hdl->buckets ? 0 : -ENOMEM; return hdl->error; } @@ -1774,9 +1776,9 @@ void v4l2_ctrl_handler_free(struct v4l2_ctrl_handler *hdl) list_del(&ctrl->node); list_for_each_entry_safe(sev, next_sev, &ctrl->ev_subs, node) list_del(&sev->node); - kfree(ctrl); + kvfree(ctrl); } - kfree(hdl->buckets); + kvfree(hdl->buckets); hdl->buckets = NULL; hdl->cached = NULL; hdl->error = 0; @@ -2024,7 +2026,7 @@ static struct v4l2_ctrl *v4l2_ctrl_new(struct v4l2_ctrl_handler *hdl, is_array) sz_extra += 2 * tot_ctrl_size; - ctrl = kzalloc(sizeof(*ctrl) + sz_extra, GFP_KERNEL); + ctrl = kvzalloc(sizeof(*ctrl) + sz_extra, GFP_KERNEL); if (ctrl == NULL) { handler_set_err(hdl, -ENOMEM); return NULL; @@ -2073,7 +2075,7 @@ static struct v4l2_ctrl *v4l2_ctrl_new(struct v4l2_ctrl_handler *hdl, } if (handler_new_ref(hdl, ctrl)) { - kfree(ctrl); + kvfree(ctrl); return NULL; } mutex_lock(hdl->lock); @@ -2843,8 +2845,8 @@ int v4l2_g_ext_ctrls(struct v4l2_ctrl_handler *hdl, struct v4l2_ext_controls *cs return class_check(hdl, cs->which); if (cs->count > ARRAY_SIZE(helper)) { - helpers = kmalloc_array(cs->count, sizeof(helper[0]), - GFP_KERNEL); + helpers = kvmalloc_array(cs->count, sizeof(helper[0]), + GFP_KERNEL); if (helpers == NULL) return -ENOMEM; } @@ -2896,7 +2898,7 @@ int v4l2_g_ext_ctrls(struct v4l2_ctrl_handler *hdl, struct v4l2_ext_controls *cs } if (cs->count > ARRAY_SIZE(helper)) - kfree(helpers); + kvfree(helpers); return ret; } EXPORT_SYMBOL(v4l2_g_ext_ctrls); @@ -3098,8 +3100,8 @@ static int try_set_ext_ctrls(struct v4l2_fh *fh, struct v4l2_ctrl_handler *hdl, return class_check(hdl, cs->which); if (cs->count > ARRAY_SIZE(helper)) { - helpers = kmalloc_array(cs->count, sizeof(helper[0]), - GFP_KERNEL); + helpers = kvmalloc_array(cs->count, sizeof(helper[0]), + GFP_KERNEL); if (!helpers) return -ENOMEM; } @@ -3176,7 +3178,7 @@ static int try_set_ext_ctrls(struct v4l2_fh *fh, struct v4l2_ctrl_handler *hdl, } if (cs->count > ARRAY_SIZE(helper)) - kfree(helpers); + kvfree(helpers); return ret; } diff --git a/drivers/media/v4l2-core/v4l2-event.c b/drivers/media/v4l2-core/v4l2-event.c index a75df6cb141f..968c2eb08b5a 100644 --- a/drivers/media/v4l2-core/v4l2-event.c +++ b/drivers/media/v4l2-core/v4l2-event.c @@ -21,6 +21,7 @@ #include #include +#include #include #include #include @@ -214,7 +215,8 @@ int v4l2_event_subscribe(struct v4l2_fh *fh, if (elems < 1) elems = 1; - sev = kzalloc(sizeof(*sev) + sizeof(struct v4l2_kevent) * elems, GFP_KERNEL); + sev = kvzalloc(sizeof(*sev) + sizeof(struct v4l2_kevent) * elems, + GFP_KERNEL); if (!sev) return -ENOMEM; for (i = 0; i < elems; i++) @@ -232,7 +234,7 @@ int v4l2_event_subscribe(struct v4l2_fh *fh, spin_unlock_irqrestore(&fh->vdev->fh_lock, flags); if (found_ev) { - kfree(sev); + kvfree(sev); return 0; /* Already listening */ } @@ -304,7 +306,7 @@ int v4l2_event_unsubscribe(struct v4l2_fh *fh, if (sev && sev->ops && sev->ops->del) sev->ops->del(sev); - kfree(sev); + kvfree(sev); return 0; } diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c index ce40183d9daa..6eabd915aff6 100644 --- a/drivers/media/v4l2-core/v4l2-ioctl.c +++ b/drivers/media/v4l2-core/v4l2-ioctl.c @@ -12,6 +12,7 @@ * Mauro Carvalho Chehab (version 2) */ +#include #include #include #include @@ -2817,7 +2818,7 @@ video_usercopy(struct file *file, unsigned int cmd, unsigned long arg, parg = sbuf; } else { /* too big to allocate from stack */ - mbuf = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL); + mbuf = kvmalloc(_IOC_SIZE(cmd), GFP_KERNEL); if (NULL == mbuf) return -ENOMEM; parg = mbuf; @@ -2866,7 +2867,7 @@ video_usercopy(struct file *file, unsigned int cmd, unsigned long arg, * array) fits into sbuf (so that mbuf will still remain * unused up to here). */ - mbuf = kmalloc(array_size, GFP_KERNEL); + mbuf = kvmalloc(array_size, GFP_KERNEL); err = -ENOMEM; if (NULL == mbuf) goto out_array_args; @@ -2911,7 +2912,7 @@ video_usercopy(struct file *file, unsigned int cmd, unsigned long arg, } out: - kfree(mbuf); + kvfree(mbuf); return err; } EXPORT_SYMBOL(video_usercopy); diff --git a/drivers/media/v4l2-core/v4l2-subdev.c b/drivers/media/v4l2-core/v4l2-subdev.c index da78497ae5ed..43fefa73e0a3 100644 --- a/drivers/media/v4l2-core/v4l2-subdev.c +++ b/drivers/media/v4l2-core/v4l2-subdev.c @@ -17,6 +17,7 @@ */ #include +#include #include #include #include @@ -577,13 +578,14 @@ v4l2_subdev_alloc_pad_config(struct v4l2_subdev *sd) if (!sd->entity.num_pads) return NULL; - cfg = kcalloc(sd->entity.num_pads, sizeof(*cfg), GFP_KERNEL); + cfg = kvmalloc_array(sd->entity.num_pads, sizeof(*cfg), + GFP_KERNEL | __GFP_ZERO); if (!cfg) return NULL; ret = v4l2_subdev_call(sd, pad, init_cfg, cfg); if (ret < 0 && ret != -ENOIOCTLCMD) { - kfree(cfg); + kvfree(cfg); return NULL; } @@ -593,7 +595,7 @@ EXPORT_SYMBOL_GPL(v4l2_subdev_alloc_pad_config); void v4l2_subdev_free_pad_config(struct v4l2_subdev_pad_config *cfg) { - kfree(cfg); + kvfree(cfg); } EXPORT_SYMBOL_GPL(v4l2_subdev_free_pad_config); #endif /* CONFIG_MEDIA_CONTROLLER */ diff --git a/drivers/media/v4l2-core/videobuf2-dma-sg.c b/drivers/media/v4l2-core/videobuf2-dma-sg.c index 8e8798a74760..5defa1f22ca2 100644 --- a/drivers/media/v4l2-core/videobuf2-dma-sg.c +++ b/drivers/media/v4l2-core/videobuf2-dma-sg.c @@ -120,8 +120,8 @@ static void *vb2_dma_sg_alloc(struct device *dev, unsigned long dma_attrs, buf->num_pages = size >> PAGE_SHIFT; buf->dma_sgt = &buf->sg_table; - buf->pages = kzalloc(buf->num_pages * sizeof(struct page *), - GFP_KERNEL); + buf->pages = kvmalloc_array(buf->num_pages, sizeof(struct page *), + GFP_KERNEL | __GFP_ZERO); if (!buf->pages) goto fail_pages_array_alloc; @@ -165,7 +165,7 @@ static void *vb2_dma_sg_alloc(struct device *dev, unsigned long dma_attrs, while (num_pages--) __free_page(buf->pages[num_pages]); fail_pages_alloc: - kfree(buf->pages); + kvfree(buf->pages); fail_pages_array_alloc: kfree(buf); return ERR_PTR(-ENOMEM); @@ -187,7 +187,7 @@ static void vb2_dma_sg_put(void *buf_priv) sg_free_table(buf->dma_sgt); while (--i >= 0) __free_page(buf->pages[i]); - kfree(buf->pages); + kvfree(buf->pages); put_device(buf->dev); kfree(buf); }