Merge tag 'media/v6.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:

 - honour privacy led with pdx86/int3472

 - fix invalid file access on cx18 and ivtv

 - forbid remove_bufs when legacy fileio is active on videbuf2

 - add an heuristic to find stream entity on uvcvideo

* tag 'media/v6.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  media: videobuf2: forbid remove_bufs when legacy fileio is active
  media: uvcvideo: Use heuristic to find stream entity
  media: v4l2-subdev / pdx86: int3472: Use "privacy" as con_id for the privacy LED
  media: ivtv: Fix invalid access to file *
  media: cx18: Fix invalid access to file *

10 files changed, 73 insertions, 37 deletions

diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index d911021c1bb0..83862d57b126 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -1010,6 +1010,11 @@ int vb2_ioctl_remove_bufs(struct file *file, void *priv,
 	if (vb2_queue_is_busy(vdev->queue, file))
 		return -EBUSY;
 
+	if (vb2_fileio_is_active(vdev->queue)) {
+		dprintk(vdev->queue, 1, "file io in progress\n");
+		return -EBUSY;
+	}
+
 	return vb2_core_remove_bufs(vdev->queue, d->index, d->count);
 }
 EXPORT_SYMBOL_GPL(vb2_ioctl_remove_bufs);
diff --git a/drivers/media/pci/cx18/cx18-driver.c b/drivers/media/pci/cx18/cx18-driver.c
index b62fd12c93c1..74c59a94b2b0 100644
--- a/drivers/media/pci/cx18/cx18-driver.c
+++ b/drivers/media/pci/cx18/cx18-driver.c
@@ -1136,11 +1136,8 @@ int cx18_init_on_first_open(struct cx18 *cx)
 	int video_input;
 	int fw_retry_count = 3;
 	struct v4l2_frequency vf;
-	struct cx18_open_id fh;
 	v4l2_std_id std;
 
-	fh.cx = cx;
-
 	if (test_bit(CX18_F_I_FAILED, &cx->i_flags))
 		return -ENXIO;
 
@@ -1220,14 +1217,14 @@ int cx18_init_on_first_open(struct cx18 *cx)
 
 	video_input = cx->active_input;
 	cx->active_input++;	/* Force update of input */
-	cx18_s_input(NULL, &fh, video_input);
+	cx18_do_s_input(cx, video_input);
 
 	/* Let the VIDIOC_S_STD ioctl do all the work, keeps the code
 	   in one place. */
 	cx->std++;		/* Force full standard initialization */
 	std = (cx->tuner_std == V4L2_STD_ALL) ? V4L2_STD_NTSC_M : cx->tuner_std;
-	cx18_s_std(NULL, &fh, std);
-	cx18_s_frequency(NULL, &fh, &vf);
+	cx18_do_s_std(cx, std);
+	cx18_do_s_frequency(cx, &vf);
 	return 0;
 }
 
diff --git a/drivers/media/pci/cx18/cx18-ioctl.c b/drivers/media/pci/cx18/cx18-ioctl.c
index 0f3019739d03..0d676a57e24e 100644
--- a/drivers/media/pci/cx18/cx18-ioctl.c
+++ b/drivers/media/pci/cx18/cx18-ioctl.c
@@ -521,10 +521,8 @@ static int cx18_g_input(struct file *file, void *fh, unsigned int *i)
 	return 0;
 }
 
-int cx18_s_input(struct file *file, void *fh, unsigned int inp)
+int cx18_do_s_input(struct cx18 *cx, unsigned int inp)
 {
-	struct cx18_open_id *id = file2id(file);
-	struct cx18 *cx = id->cx;
 	v4l2_std_id std = V4L2_STD_ALL;
 	const struct cx18_card_video_input *card_input =
 				cx->card->video_inputs + inp;
@@ -558,6 +556,11 @@ int cx18_s_input(struct file *file, void *fh, unsigned int inp)
 	return 0;
 }
 
+static int cx18_s_input(struct file *file, void *fh, unsigned int inp)
+{
+	return cx18_do_s_input(file2id(file)->cx, inp);
+}
+
 static int cx18_g_frequency(struct file *file, void *fh,
 				struct v4l2_frequency *vf)
 {
@@ -570,11 +573,8 @@ static int cx18_g_frequency(struct file *file, void *fh,
 	return 0;
 }
 
-int cx18_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf)
+int cx18_do_s_frequency(struct cx18 *cx, const struct v4l2_frequency *vf)
 {
-	struct cx18_open_id *id = file2id(file);
-	struct cx18 *cx = id->cx;
-
 	if (vf->tuner != 0)
 		return -EINVAL;
 
@@ -585,6 +585,12 @@ int cx18_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *v
 	return 0;
 }
 
+static int cx18_s_frequency(struct file *file, void *fh,
+			    const struct v4l2_frequency *vf)
+{
+	return cx18_do_s_frequency(file2id(file)->cx, vf);
+}
+
 static int cx18_g_std(struct file *file, void *fh, v4l2_std_id *std)
 {
 	struct cx18 *cx = file2id(file)->cx;
@@ -593,11 +599,8 @@ static int cx18_g_std(struct file *file, void *fh, v4l2_std_id *std)
 	return 0;
 }
 
-int cx18_s_std(struct file *file, void *fh, v4l2_std_id std)
+int cx18_do_s_std(struct cx18 *cx, v4l2_std_id std)
 {
-	struct cx18_open_id *id = file2id(file);
-	struct cx18 *cx = id->cx;
-
 	if ((std & V4L2_STD_ALL) == 0)
 		return -EINVAL;
 
@@ -642,6 +645,11 @@ int cx18_s_std(struct file *file, void *fh, v4l2_std_id std)
 	return 0;
 }
 
+static int cx18_s_std(struct file *file, void *fh, v4l2_std_id std)
+{
+	return cx18_do_s_std(file2id(file)->cx, std);
+}
+
 static int cx18_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt)
 {
 	struct cx18_open_id *id = file2id(file);
diff --git a/drivers/media/pci/cx18/cx18-ioctl.h b/drivers/media/pci/cx18/cx18-ioctl.h
index 97cd9f99e22d..42a8acd69735 100644
--- a/drivers/media/pci/cx18/cx18-ioctl.h
+++ b/drivers/media/pci/cx18/cx18-ioctl.h
@@ -12,6 +12,8 @@ u16 cx18_service2vbi(int type);
 void cx18_expand_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal);
 u16 cx18_get_service_set(struct v4l2_sliced_vbi_format *fmt);
 void cx18_set_funcs(struct video_device *vdev);
-int cx18_s_std(struct file *file, void *fh, v4l2_std_id std);
-int cx18_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf);
-int cx18_s_input(struct file *file, void *fh, unsigned int inp);
+
+struct cx18;
+int cx18_do_s_std(struct cx18 *cx, v4l2_std_id std);
+int cx18_do_s_frequency(struct cx18 *cx, const struct v4l2_frequency *vf);
+int cx18_do_s_input(struct cx18 *cx, unsigned int inp);
diff --git a/drivers/media/pci/ivtv/ivtv-driver.c b/drivers/media/pci/ivtv/ivtv-driver.c
index 72a8f76a41f4..459eb6cc370c 100644
--- a/drivers/media/pci/ivtv/ivtv-driver.c
+++ b/drivers/media/pci/ivtv/ivtv-driver.c
@@ -1247,15 +1247,12 @@ err:
 
 int ivtv_init_on_first_open(struct ivtv *itv)
 {
-	struct v4l2_frequency vf;
 	/* Needed to call ioctls later */
-	struct ivtv_open_id fh;
+	struct ivtv_stream *s = &itv->streams[IVTV_ENC_STREAM_TYPE_MPG];
+	struct v4l2_frequency vf;
 	int fw_retry_count = 3;
 	int video_input;
 
-	fh.itv = itv;
-	fh.type = IVTV_ENC_STREAM_TYPE_MPG;
-
 	if (test_bit(IVTV_F_I_FAILED, &itv->i_flags))
 		return -ENXIO;
 
@@ -1297,13 +1294,13 @@ int ivtv_init_on_first_open(struct ivtv *itv)
 
 	video_input = itv->active_input;
 	itv->active_input++;	/* Force update of input */
-	ivtv_s_input(NULL, &fh, video_input);
+	ivtv_do_s_input(itv, video_input);
 
 	/* Let the VIDIOC_S_STD ioctl do all the work, keeps the code
 	   in one place. */
 	itv->std++;		/* Force full standard initialization */
 	itv->std_out = itv->std;
-	ivtv_s_frequency(NULL, &fh, &vf);
+	ivtv_do_s_frequency(s, &vf);
 
 	if (itv->card->v4l2_capabilities & V4L2_CAP_VIDEO_OUTPUT) {
 		/* Turn on the TV-out: ivtv_init_mpeg_decoder() initializes
diff --git a/drivers/media/pci/ivtv/ivtv-ioctl.c b/drivers/media/pci/ivtv/ivtv-ioctl.c
index 84c73bd22f2d..8d5ea3aec06f 100644
--- a/drivers/media/pci/ivtv/ivtv-ioctl.c
+++ b/drivers/media/pci/ivtv/ivtv-ioctl.c
@@ -974,9 +974,8 @@ static int ivtv_g_input(struct file *file, void *fh, unsigned int *i)
 	return 0;
 }
 
-int ivtv_s_input(struct file *file, void *fh, unsigned int inp)
+int ivtv_do_s_input(struct ivtv *itv, unsigned int inp)
 {
-	struct ivtv *itv = file2id(file)->itv;
 	v4l2_std_id std;
 	int i;
 
@@ -1017,6 +1016,11 @@ int ivtv_s_input(struct file *file, void *fh, unsigned int inp)
 	return 0;
 }
 
+static int ivtv_s_input(struct file *file, void *fh, unsigned int inp)
+{
+	return ivtv_do_s_input(file2id(file)->itv, inp);
+}
+
 static int ivtv_g_output(struct file *file, void *fh, unsigned int *i)
 {
 	struct ivtv *itv = file2id(file)->itv;
@@ -1065,10 +1069,9 @@ static int ivtv_g_frequency(struct file *file, void *fh, struct v4l2_frequency *
 	return 0;
 }
 
-int ivtv_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf)
+int ivtv_do_s_frequency(struct ivtv_stream *s, const struct v4l2_frequency *vf)
 {
-	struct ivtv *itv = file2id(file)->itv;
-	struct ivtv_stream *s = &itv->streams[file2id(file)->type];
+	struct ivtv *itv = s->itv;
 
 	if (s->vdev.vfl_dir)
 		return -ENOTTY;
@@ -1082,6 +1085,15 @@ int ivtv_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *v
 	return 0;
 }
 
+static int ivtv_s_frequency(struct file *file, void *fh,
+			    const struct v4l2_frequency *vf)
+{
+	struct ivtv_open_id *id = file2id(file);
+	struct ivtv *itv = id->itv;
+
+	return ivtv_do_s_frequency(&itv->streams[id->type], vf);
+}
+
 static int ivtv_g_std(struct file *file, void *fh, v4l2_std_id *std)
 {
 	struct ivtv *itv = file2id(file)->itv;
diff --git a/drivers/media/pci/ivtv/ivtv-ioctl.h b/drivers/media/pci/ivtv/ivtv-ioctl.h
index 7f8c6f43d397..96ca7e2ef973 100644
--- a/drivers/media/pci/ivtv/ivtv-ioctl.h
+++ b/drivers/media/pci/ivtv/ivtv-ioctl.h
@@ -9,6 +9,8 @@
 #ifndef IVTV_IOCTL_H
 #define IVTV_IOCTL_H
 
+struct ivtv;
+
 u16 ivtv_service2vbi(int type);
 void ivtv_expand_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal);
 u16 ivtv_get_service_set(struct v4l2_sliced_vbi_format *fmt);
@@ -17,7 +19,7 @@ int ivtv_set_speed(struct ivtv *itv, int speed);
 void ivtv_set_funcs(struct video_device *vdev);
 void ivtv_s_std_enc(struct ivtv *itv, v4l2_std_id std);
 void ivtv_s_std_dec(struct ivtv *itv, v4l2_std_id std);
-int ivtv_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf);
-int ivtv_s_input(struct file *file, void *fh, unsigned int inp);
+int ivtv_do_s_frequency(struct ivtv_stream *s, const struct v4l2_frequency *vf);
+int ivtv_do_s_input(struct ivtv *itv, unsigned int inp);
 
 #endif
diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
index fb6afb8e84f0..ee4f54d68349 100644
--- a/drivers/media/usb/uvc/uvc_driver.c
+++ b/drivers/media/usb/uvc/uvc_driver.c
@@ -167,13 +167,26 @@ static struct uvc_entity *uvc_entity_by_reference(struct uvc_device *dev,
 
 static struct uvc_streaming *uvc_stream_by_id(struct uvc_device *dev, int id)
 {
-	struct uvc_streaming *stream;
+	struct uvc_streaming *stream, *last_stream;
+	unsigned int count = 0;
 
 	list_for_each_entry(stream, &dev->streams, list) {
+		count += 1;
+		last_stream = stream;
 		if (stream->header.bTerminalLink == id)
 			return stream;
 	}
 
+	/*
+	 * If the streaming entity is referenced by an invalid ID, notify the
+	 * user and use heuristics to guess the correct entity.
+	 */
+	if (count == 1 && id == UVC_INVALID_ENTITY_ID) {
+		dev_warn(&dev->intf->dev,
+			 "UVC non compliance: Invalid USB header. The streaming entity has an invalid ID, guessing the correct one.");
+		return last_stream;
+	}
+
 	return NULL;
 }
 
diff --git a/drivers/media/v4l2-core/v4l2-subdev.c b/drivers/media/v4l2-core/v4l2-subdev.c
index 1da953629010..25e66bf18f5f 100644
--- a/drivers/media/v4l2-core/v4l2-subdev.c
+++ b/drivers/media/v4l2-core/v4l2-subdev.c
@@ -2608,7 +2608,7 @@ EXPORT_SYMBOL_GPL(v4l2_subdev_is_streaming);
 int v4l2_subdev_get_privacy_led(struct v4l2_subdev *sd)
 {
 #if IS_REACHABLE(CONFIG_LEDS_CLASS)
-	sd->privacy_led = led_get(sd->dev, "privacy-led");
+	sd->privacy_led = led_get(sd->dev, "privacy");
 	if (IS_ERR(sd->privacy_led) && PTR_ERR(sd->privacy_led) != -ENOENT)
 		return dev_err_probe(sd->dev, PTR_ERR(sd->privacy_led),
 				     "getting privacy LED\n");
diff --git a/drivers/platform/x86/intel/int3472/led.c b/drivers/platform/x86/intel/int3472/led.c
index f1d6d7b0cb75..b1d84b968112 100644
--- a/drivers/platform/x86/intel/int3472/led.c
+++ b/drivers/platform/x86/intel/int3472/led.c
@@ -43,7 +43,7 @@ int skl_int3472_register_pled(struct int3472_discrete_device *int3472, struct gp
 
 	int3472->pled.lookup.provider = int3472->pled.name;
 	int3472->pled.lookup.dev_id = int3472->sensor_name;
-	int3472->pled.lookup.con_id = "privacy-led";
+	int3472->pled.lookup.con_id = "privacy";
 	led_add_lookup(&int3472->pled.lookup);
 
 	return 0;