Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:
 "For a some fix patches for v3.4, including a regression fix at DVB core"

Fix up trivial conflicts in Documentation/feature-removal-schedule.txt

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  [media] gspca - sonixj: Fix a zero divide in isoc interrupt
  [media] media: videobuf2-dma-contig: include header for exported symbols
  [media] media: videobuf2-dma-contig: quiet sparse noise about plain integer as NULL pointer
  [media] media: vb2-memops: Export vb2_get_vma symbol
  [media] s5p-fimc: Correct memory allocation for VIDIOC_CREATE_BUFS
  [media] s5p-fimc: Fix locking in subdev set_crop op
  [media] dvb_frontend: fix a regression with DVB-S zig-zag
  [media] fintek-cir: change || to &&
  [media] V4L: Schedule V4L2_CID_HCENTER, V4L2_CID_VCENTER controls for removal
  [media] rc: Postpone ISR registration
  [media] marvell-cam: fix an ARM build error
  [media] V4L: soc-camera: protect hosts during probing from overzealous user-space

14 files changed, 135 insertions, 117 deletions

diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c
index 0f64d7182657..cb888d835a89 100644
--- a/drivers/media/dvb/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.c
@@ -1921,6 +1921,10 @@ static int dtv_set_frontend(struct dvb_frontend *fe)
         } else {
                 /* default values */
                 switch (c->delivery_system) {
+                case SYS_DVBS:
+                case SYS_DVBS2:
+                case SYS_ISDBS:
+                case SYS_TURBO:
                 case SYS_DVBC_ANNEX_A:
                 case SYS_DVBC_ANNEX_C:
                         fepriv->min_delay = HZ / 20;
diff --git a/drivers/media/rc/ene_ir.c b/drivers/media/rc/ene_ir.c
index 860c112e0fd2..bef5296173c9 100644
--- a/drivers/media/rc/ene_ir.c
+++ b/drivers/media/rc/ene_ir.c
@@ -1018,22 +1018,6 @@ static int ene_probe(struct pnp_dev *pnp_dev, const struct pnp_device_id *id)
 
         spin_lock_init(&dev->hw_lock);
 
-        /* claim the resources */
-        error = -EBUSY;
-        dev->hw_io = pnp_port_start(pnp_dev, 0);
-        if (!request_region(dev->hw_io, ENE_IO_SIZE, ENE_DRIVER_NAME)) {
-                dev->hw_io = -1;
-                dev->irq = -1;
-                goto error;
-        }
-
-        dev->irq = pnp_irq(pnp_dev, 0);
-        if (request_irq(dev->irq, ene_isr,
-                        IRQF_SHARED, ENE_DRIVER_NAME, (void *)dev)) {
-                dev->irq = -1;
-                goto error;
-        }
-
         pnp_set_drvdata(pnp_dev, dev);
         dev->pnp_dev = pnp_dev;
 
@@ -1086,6 +1070,22 @@ static int ene_probe(struct pnp_dev *pnp_dev, const struct pnp_device_id *id)
         device_set_wakeup_capable(&pnp_dev->dev, true);
         device_set_wakeup_enable(&pnp_dev->dev, true);
 
+        /* claim the resources */
+        error = -EBUSY;
+        dev->hw_io = pnp_port_start(pnp_dev, 0);
+        if (!request_region(dev->hw_io, ENE_IO_SIZE, ENE_DRIVER_NAME)) {
+                dev->hw_io = -1;
+                dev->irq = -1;
+                goto error;
+        }
+
+        dev->irq = pnp_irq(pnp_dev, 0);
+        if (request_irq(dev->irq, ene_isr,
+                        IRQF_SHARED, ENE_DRIVER_NAME, (void *)dev)) {
+                dev->irq = -1;
+                goto error;
+        }
+
         error = rc_register_device(rdev);
         if (error < 0)
                 goto error;
diff --git a/drivers/media/rc/fintek-cir.c b/drivers/media/rc/fintek-cir.c
index 392d4be91f8f..4a3a238bcfbc 100644
--- a/drivers/media/rc/fintek-cir.c
+++ b/drivers/media/rc/fintek-cir.c
@@ -197,7 +197,7 @@ static int fintek_hw_detect(struct fintek_dev *fintek)
         /*
          * Newer reviews of this chipset uses port 8 instead of 5
          */
-        if ((chip != 0x0408) || (chip != 0x0804))
+        if ((chip != 0x0408) && (chip != 0x0804))
                 fintek->logical_dev_cir = LOGICAL_DEV_CIR_REV2;
         else
                 fintek->logical_dev_cir = LOGICAL_DEV_CIR_REV1;
@@ -514,16 +514,6 @@ static int fintek_probe(struct pnp_dev *pdev, const struct pnp_device_id *dev_id
 
         spin_lock_init(&fintek->fintek_lock);
 
-        ret = -EBUSY;
-        /* now claim resources */
-        if (!request_region(fintek->cir_addr,
-                            fintek->cir_port_len, FINTEK_DRIVER_NAME))
-                goto failure;
-
-        if (request_irq(fintek->cir_irq, fintek_cir_isr, IRQF_SHARED,
-                        FINTEK_DRIVER_NAME, (void *)fintek))
-                goto failure;
-
         pnp_set_drvdata(pdev, fintek);
         fintek->pdev = pdev;
 
@@ -558,6 +548,16 @@ static int fintek_probe(struct pnp_dev *pdev, const struct pnp_device_id *dev_id
         /* rx resolution is hardwired to 50us atm, 1, 25, 100 also possible */
         rdev->rx_resolution = US_TO_NS(CIR_SAMPLE_PERIOD);
 
+        ret = -EBUSY;
+        /* now claim resources */
+        if (!request_region(fintek->cir_addr,
+                            fintek->cir_port_len, FINTEK_DRIVER_NAME))
+                goto failure;
+
+        if (request_irq(fintek->cir_irq, fintek_cir_isr, IRQF_SHARED,
+                        FINTEK_DRIVER_NAME, (void *)fintek))
+                goto failure;
+
         ret = rc_register_device(rdev);
         if (ret)
                 goto failure;
diff --git a/drivers/media/rc/ite-cir.c b/drivers/media/rc/ite-cir.c
index 682009d76cdf..0e49c99abf68 100644
--- a/drivers/media/rc/ite-cir.c
+++ b/drivers/media/rc/ite-cir.c
@@ -1515,16 +1515,6 @@ static int ite_probe(struct pnp_dev *pdev, const struct pnp_device_id
         /* initialize raw event */
         init_ir_raw_event(&itdev->rawir);
 
-        ret = -EBUSY;
-        /* now claim resources */
-        if (!request_region(itdev->cir_addr,
-                                dev_desc->io_region_size, ITE_DRIVER_NAME))
-                goto failure;
-
-        if (request_irq(itdev->cir_irq, ite_cir_isr, IRQF_SHARED,
-                        ITE_DRIVER_NAME, (void *)itdev))
-                goto failure;
-
         /* set driver data into the pnp device */
         pnp_set_drvdata(pdev, itdev);
         itdev->pdev = pdev;
@@ -1600,6 +1590,16 @@ static int ite_probe(struct pnp_dev *pdev, const struct pnp_device_id
         rdev->driver_name = ITE_DRIVER_NAME;
         rdev->map_name = RC_MAP_RC6_MCE;
 
+        ret = -EBUSY;
+        /* now claim resources */
+        if (!request_region(itdev->cir_addr,
+                                dev_desc->io_region_size, ITE_DRIVER_NAME))
+                goto failure;
+
+        if (request_irq(itdev->cir_irq, ite_cir_isr, IRQF_SHARED,
+                        ITE_DRIVER_NAME, (void *)itdev))
+                goto failure;
+
         ret = rc_register_device(rdev);
         if (ret)
                 goto failure;
diff --git a/drivers/media/rc/nuvoton-cir.c b/drivers/media/rc/nuvoton-cir.c
index 144f3f55d765..8b2c071ac0ab 100644
--- a/drivers/media/rc/nuvoton-cir.c
+++ b/drivers/media/rc/nuvoton-cir.c
@@ -1021,24 +1021,6 @@ static int nvt_probe(struct pnp_dev *pdev, const struct pnp_device_id *dev_id)
         spin_lock_init(&nvt->nvt_lock);
         spin_lock_init(&nvt->tx.lock);
 
-        ret = -EBUSY;
-        /* now claim resources */
-        if (!request_region(nvt->cir_addr,
-                            CIR_IOREG_LENGTH, NVT_DRIVER_NAME))
-                goto failure;
-
-        if (request_irq(nvt->cir_irq, nvt_cir_isr, IRQF_SHARED,
-                        NVT_DRIVER_NAME, (void *)nvt))
-                goto failure;
-
-        if (!request_region(nvt->cir_wake_addr,
-                            CIR_IOREG_LENGTH, NVT_DRIVER_NAME))
-                goto failure;
-
-        if (request_irq(nvt->cir_wake_irq, nvt_cir_wake_isr, IRQF_SHARED,
-                        NVT_DRIVER_NAME, (void *)nvt))
-                goto failure;
-
         pnp_set_drvdata(pdev, nvt);
         nvt->pdev = pdev;
 
@@ -1085,6 +1067,24 @@ static int nvt_probe(struct pnp_dev *pdev, const struct pnp_device_id *dev_id)
         rdev->tx_resolution = XYZ;
 #endif
 
+        ret = -EBUSY;
+        /* now claim resources */
+        if (!request_region(nvt->cir_addr,
+                            CIR_IOREG_LENGTH, NVT_DRIVER_NAME))
+                goto failure;
+
+        if (request_irq(nvt->cir_irq, nvt_cir_isr, IRQF_SHARED,
+                        NVT_DRIVER_NAME, (void *)nvt))
+                goto failure;
+
+        if (!request_region(nvt->cir_wake_addr,
+                            CIR_IOREG_LENGTH, NVT_DRIVER_NAME))
+                goto failure;
+
+        if (request_irq(nvt->cir_wake_irq, nvt_cir_wake_isr, IRQF_SHARED,
+                        NVT_DRIVER_NAME, (void *)nvt))
+                goto failure;
+
         ret = rc_register_device(rdev);
         if (ret)
                 goto failure;
diff --git a/drivers/media/rc/winbond-cir.c b/drivers/media/rc/winbond-cir.c
index af526586fa26..342c2c8c1ddf 100644
--- a/drivers/media/rc/winbond-cir.c
+++ b/drivers/media/rc/winbond-cir.c
@@ -991,39 +991,10 @@ wbcir_probe(struct pnp_dev *device, const struct pnp_device_id *dev_id)
                 "(w: 0x%lX, e: 0x%lX, s: 0x%lX, i: %u)\n",
                 data->wbase, data->ebase, data->sbase, data->irq);
 
-        if (!request_region(data->wbase, WAKEUP_IOMEM_LEN, DRVNAME)) {
-                dev_err(dev, "Region 0x%lx-0x%lx already in use!\n",
-                        data->wbase, data->wbase + WAKEUP_IOMEM_LEN - 1);
-                err = -EBUSY;
-                goto exit_free_data;
-        }
-
-        if (!request_region(data->ebase, EHFUNC_IOMEM_LEN, DRVNAME)) {
-                dev_err(dev, "Region 0x%lx-0x%lx already in use!\n",
-                        data->ebase, data->ebase + EHFUNC_IOMEM_LEN - 1);
-                err = -EBUSY;
-                goto exit_release_wbase;
-        }
-
-        if (!request_region(data->sbase, SP_IOMEM_LEN, DRVNAME)) {
-                dev_err(dev, "Region 0x%lx-0x%lx already in use!\n",
-                        data->sbase, data->sbase + SP_IOMEM_LEN - 1);
-                err = -EBUSY;
-                goto exit_release_ebase;
-        }
-
-        err = request_irq(data->irq, wbcir_irq_handler,
-                          IRQF_DISABLED, DRVNAME, device);
-        if (err) {
-                dev_err(dev, "Failed to claim IRQ %u\n", data->irq);
-                err = -EBUSY;
-                goto exit_release_sbase;
-        }
-
         led_trigger_register_simple("cir-tx", &data->txtrigger);
         if (!data->txtrigger) {
                 err = -ENOMEM;
-                goto exit_free_irq;
+                goto exit_free_data;
         }
 
         led_trigger_register_simple("cir-rx", &data->rxtrigger);
@@ -1062,9 +1033,38 @@ wbcir_probe(struct pnp_dev *device, const struct pnp_device_id *dev_id)
         data->dev->priv = data;
         data->dev->dev.parent = &device->dev;
 
+        if (!request_region(data->wbase, WAKEUP_IOMEM_LEN, DRVNAME)) {
+                dev_err(dev, "Region 0x%lx-0x%lx already in use!\n",
+                        data->wbase, data->wbase + WAKEUP_IOMEM_LEN - 1);
+                err = -EBUSY;
+                goto exit_free_rc;
+        }
+
+        if (!request_region(data->ebase, EHFUNC_IOMEM_LEN, DRVNAME)) {
+                dev_err(dev, "Region 0x%lx-0x%lx already in use!\n",
+                        data->ebase, data->ebase + EHFUNC_IOMEM_LEN - 1);
+                err = -EBUSY;
+                goto exit_release_wbase;
+        }
+
+        if (!request_region(data->sbase, SP_IOMEM_LEN, DRVNAME)) {
+                dev_err(dev, "Region 0x%lx-0x%lx already in use!\n",
+                        data->sbase, data->sbase + SP_IOMEM_LEN - 1);
+                err = -EBUSY;
+                goto exit_release_ebase;
+        }
+
+        err = request_irq(data->irq, wbcir_irq_handler,
+                          IRQF_DISABLED, DRVNAME, device);
+        if (err) {
+                dev_err(dev, "Failed to claim IRQ %u\n", data->irq);
+                err = -EBUSY;
+                goto exit_release_sbase;
+        }
+
         err = rc_register_device(data->dev);
         if (err)
-                goto exit_free_rc;
+                goto exit_free_irq;
 
         device_init_wakeup(&device->dev, 1);
 
@@ -1072,14 +1072,6 @@ wbcir_probe(struct pnp_dev *device, const struct pnp_device_id *dev_id)
 
         return 0;
 
-exit_free_rc:
-        rc_free_device(data->dev);
-exit_unregister_led:
-        led_classdev_unregister(&data->led);
-exit_unregister_rxtrigger:
-        led_trigger_unregister_simple(data->rxtrigger);
-exit_unregister_txtrigger:
-        led_trigger_unregister_simple(data->txtrigger);
 exit_free_irq:
         free_irq(data->irq, device);
 exit_release_sbase:
@@ -1088,6 +1080,14 @@ exit_release_ebase:
         release_region(data->ebase, EHFUNC_IOMEM_LEN);
 exit_release_wbase:
         release_region(data->wbase, WAKEUP_IOMEM_LEN);
+exit_free_rc:
+        rc_free_device(data->dev);
+exit_unregister_led:
+        led_classdev_unregister(&data->led);
+exit_unregister_rxtrigger:
+        led_trigger_unregister_simple(data->rxtrigger);
+exit_unregister_txtrigger:
+        led_trigger_unregister_simple(data->txtrigger);
 exit_free_data:
         kfree(data);
         pnp_set_drvdata(device, NULL);
diff --git a/drivers/media/video/gspca/sonixj.c b/drivers/media/video/gspca/sonixj.c
index db8e5084df06..863c755dd2b7 100644
--- a/drivers/media/video/gspca/sonixj.c
+++ b/drivers/media/video/gspca/sonixj.c
@@ -2923,6 +2923,10 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
          * not the JPEG end of frame ('ff d9').
          */
 
+        /* count the packets and their size */
+        sd->npkt++;
+        sd->pktsz += len;
+
 /*fixme: assumption about the following code:
  *      - there can be only one marker in a packet
  */
@@ -2945,10 +2949,6 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
                 data += i;
         }
 
-        /* count the packets and their size */
-        sd->npkt++;
-        sd->pktsz += len;
-
         /* search backwards if there is a marker in the packet */
         for (i = len - 1; --i >= 0; ) {
                 if (data[i] != 0xff) {
diff --git a/drivers/media/video/marvell-ccic/mmp-driver.c b/drivers/media/video/marvell-ccic/mmp-driver.c
index d23552323f45..c4c17fe76c0d 100644
--- a/drivers/media/video/marvell-ccic/mmp-driver.c
+++ b/drivers/media/video/marvell-ccic/mmp-driver.c
@@ -181,7 +181,6 @@ static int mmpcam_probe(struct platform_device *pdev)
         INIT_LIST_HEAD(&cam->devlist);
 
         mcam = &cam->mcam;
-        mcam->platform = MHP_Armada610;
         mcam->plat_power_up = mmpcam_power_up;
         mcam->plat_power_down = mmpcam_power_down;
         mcam->dev = &pdev->dev;
diff --git a/drivers/media/video/s5p-fimc/fimc-capture.c b/drivers/media/video/s5p-fimc/fimc-capture.c
index b06efd208328..7e9b2c612b03 100644
--- a/drivers/media/video/s5p-fimc/fimc-capture.c
+++ b/drivers/media/video/s5p-fimc/fimc-capture.c
@@ -246,28 +246,37 @@ int fimc_capture_resume(struct fimc_dev *fimc)
 
 }
 
-static unsigned int get_plane_size(struct fimc_frame *fr, unsigned int plane)
-{
-        if (!fr || plane >= fr->fmt->memplanes)
-                return 0;
-        return fr->f_width * fr->f_height * fr->fmt->depth[plane] / 8;
-}
-
-static int queue_setup(struct vb2_queue *vq,  const struct v4l2_format *pfmt,
+static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *pfmt,
                        unsigned int *num_buffers, unsigned int *num_planes,
                        unsigned int sizes[], void *allocators[])
 {
+        const struct v4l2_pix_format_mplane *pixm = NULL;
         struct fimc_ctx *ctx = vq->drv_priv;
-        struct fimc_fmt *fmt = ctx->d_frame.fmt;
+        struct fimc_frame *frame = &ctx->d_frame;
+        struct fimc_fmt *fmt = frame->fmt;
+        unsigned long wh;
         int i;
 
-        if (!fmt)
+        if (pfmt) {
+                pixm = &pfmt->fmt.pix_mp;
+                fmt = fimc_find_format(&pixm->pixelformat, NULL,
+                                       FMT_FLAGS_CAM | FMT_FLAGS_M2M, -1);
+                wh = pixm->width * pixm->height;
+        } else {
+                wh = frame->f_width * frame->f_height;
+        }
+
+        if (fmt == NULL)
                 return -EINVAL;
 
         *num_planes = fmt->memplanes;
 
         for (i = 0; i < fmt->memplanes; i++) {
-                sizes[i] = get_plane_size(&ctx->d_frame, i);
+                unsigned int size = (wh * fmt->depth[i]) / 8;
+                if (pixm)
+                        sizes[i] = max(size, pixm->plane_fmt[i].sizeimage);
+                else
+                        sizes[i] = size;
                 allocators[i] = ctx->fimc_dev->alloc_ctx;
         }
 
@@ -1383,7 +1392,7 @@ static int fimc_subdev_set_crop(struct v4l2_subdev *sd,
         fimc_capture_try_crop(ctx, r, crop->pad);
 
         if (crop->which == V4L2_SUBDEV_FORMAT_TRY) {
-                mutex_lock(&fimc->lock);
+                mutex_unlock(&fimc->lock);
                 *v4l2_subdev_get_try_crop(fh, crop->pad) = *r;
                 return 0;
         }
diff --git a/drivers/media/video/s5p-fimc/fimc-core.c b/drivers/media/video/s5p-fimc/fimc-core.c
index e184e650022a..e09ba7b0076e 100644
--- a/drivers/media/video/s5p-fimc/fimc-core.c
+++ b/drivers/media/video/s5p-fimc/fimc-core.c
@@ -1048,14 +1048,14 @@ static int fimc_m2m_g_fmt_mplane(struct file *file, void *fh,
  * @mask: the color flags to match
  * @index: offset in the fimc_formats array, ignored if negative
  */
-struct fimc_fmt *fimc_find_format(u32 *pixelformat, u32 *mbus_code,
+struct fimc_fmt *fimc_find_format(const u32 *pixelformat, const u32 *mbus_code,
                                   unsigned int mask, int index)
 {
         struct fimc_fmt *fmt, *def_fmt = NULL;
         unsigned int i;
         int id = 0;
 
-        if (index >= ARRAY_SIZE(fimc_formats))
+        if (index >= (int)ARRAY_SIZE(fimc_formats))
                 return NULL;
 
         for (i = 0; i < ARRAY_SIZE(fimc_formats); ++i) {
diff --git a/drivers/media/video/s5p-fimc/fimc-core.h b/drivers/media/video/s5p-fimc/fimc-core.h
index a18291e648e2..84fd83550bd7 100644
--- a/drivers/media/video/s5p-fimc/fimc-core.h
+++ b/drivers/media/video/s5p-fimc/fimc-core.h
@@ -718,7 +718,7 @@ void fimc_alpha_ctrl_update(struct fimc_ctx *ctx);
 int fimc_fill_format(struct fimc_frame *frame, struct v4l2_format *f);
 void fimc_adjust_mplane_format(struct fimc_fmt *fmt, u32 width, u32 height,
                                struct v4l2_pix_format_mplane *pix);
-struct fimc_fmt *fimc_find_format(u32 *pixelformat, u32 *mbus_code,
+struct fimc_fmt *fimc_find_format(const u32 *pixelformat, const u32 *mbus_code,
                                   unsigned int mask, int index);
 
 int fimc_check_scaler_ratio(struct fimc_ctx *ctx, int sw, int sh,
diff --git a/drivers/media/video/soc_camera.c b/drivers/media/video/soc_camera.c
index eb25756a07af..aedb970d13f6 100644
--- a/drivers/media/video/soc_camera.c
+++ b/drivers/media/video/soc_camera.c
@@ -530,7 +530,10 @@ static int soc_camera_open(struct file *file)
                 if (icl->reset)
                         icl->reset(icd->pdev);
 
+                /* Don't mess with the host during probe */
+                mutex_lock(&ici->host_lock);
                 ret = ici->ops->add(icd);
+                mutex_unlock(&ici->host_lock);
                 if (ret < 0) {
                         dev_err(icd->pdev, "Couldn't activate the camera: %d\n", ret);
                         goto eiciadd;
@@ -956,7 +959,7 @@ static void scan_add_host(struct soc_camera_host *ici)
 {
         struct soc_camera_device *icd;
 
-        mutex_lock(&list_lock);
+        mutex_lock(&ici->host_lock);
 
         list_for_each_entry(icd, &devices, list) {
                 if (icd->iface == ici->nr) {
@@ -967,7 +970,7 @@ static void scan_add_host(struct soc_camera_host *ici)
                 }
         }
 
-        mutex_unlock(&list_lock);
+        mutex_unlock(&ici->host_lock);
 }
 
 #ifdef CONFIG_I2C_BOARDINFO
@@ -1313,6 +1316,7 @@ int soc_camera_host_register(struct soc_camera_host *ici)
         list_add_tail(&ici->list, &hosts);
         mutex_unlock(&list_lock);
 
+        mutex_init(&ici->host_lock);
         scan_add_host(ici);
 
         return 0;
diff --git a/drivers/media/video/videobuf2-dma-contig.c b/drivers/media/video/videobuf2-dma-contig.c
index f17ad98fcc5f..4b7132660a93 100644
--- a/drivers/media/video/videobuf2-dma-contig.c
+++ b/drivers/media/video/videobuf2-dma-contig.c
@@ -15,6 +15,7 @@
 #include <linux/dma-mapping.h>
 
 #include <media/videobuf2-core.h>
+#include <media/videobuf2-dma-contig.h>
 #include <media/videobuf2-memops.h>
 
 struct vb2_dc_conf {
@@ -85,7 +86,7 @@ static void *vb2_dma_contig_vaddr(void *buf_priv)
 {
         struct vb2_dc_buf *buf = buf_priv;
         if (!buf)
-                return 0;
+                return NULL;
 
         return buf->vaddr;
 }
diff --git a/drivers/media/video/videobuf2-memops.c b/drivers/media/video/videobuf2-memops.c
index c41cb60245d6..504cd4cbe29e 100644
--- a/drivers/media/video/videobuf2-memops.c
+++ b/drivers/media/video/videobuf2-memops.c
@@ -55,6 +55,7 @@ struct vm_area_struct *vb2_get_vma(struct vm_area_struct *vma)
 
         return vma_copy;
 }
+EXPORT_SYMBOL_GPL(vb2_get_vma);
 
 /**
  * vb2_put_userptr() - release a userspace virtual memory area