@@ -407,29 +407,23 @@ static int fimc_capture_open(struct file *file)
if (fimc_m2m_active(fimc))
return -EBUSY;
- if (mutex_lock_interruptible(&fimc->lock))
- return -ERESTARTSYS;
-
if (++fimc->vid_cap.refcnt == 1) {
ret = fimc_isp_subdev_init(fimc, -1);
if (ret) {
fimc->vid_cap.refcnt--;
- ret = -EIO;
+ return -EIO;
}
}
file->private_data = fimc->vid_cap.ctx;
- mutex_unlock(&fimc->lock);
- return ret;
+ return 0;
}
static int fimc_capture_close(struct file *file)
{
struct fimc_dev *fimc = video_drvdata(file);
- if (mutex_lock_interruptible(&fimc->lock))
- return -ERESTARTSYS;
dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);
if (--fimc->vid_cap.refcnt == 0) {
@@ -442,7 +436,6 @@ static int fimc_capture_close(struct file *file)
fimc_subdev_unregister(fimc);
}
- mutex_unlock(&fimc->lock);
return 0;
}
@@ -451,30 +444,16 @@ static unsigned int fimc_capture_poll(struct file *file,
{
struct fimc_ctx *ctx = file->private_data;
struct fimc_dev *fimc = ctx->fimc_dev;
- int ret;
- if (mutex_lock_interruptible(&fimc->lock))
- return POLLERR;
-
- ret = vb2_poll(&fimc->vid_cap.vbq, file, wait);
- mutex_unlock(&fimc->lock);
-
- return ret;
+ return vb2_poll(&fimc->vid_cap.vbq, file, wait);
}
static int fimc_capture_mmap(struct file *file, struct vm_area_struct *vma)
{
struct fimc_ctx *ctx = file->private_data;
struct fimc_dev *fimc = ctx->fimc_dev;
- int ret;
-
- if (mutex_lock_interruptible(&fimc->lock))
- return -ERESTARTSYS;
- ret = vb2_mmap(&fimc->vid_cap.vbq, vma);
- mutex_unlock(&fimc->lock);
-
- return ret;
+ return vb2_mmap(&fimc->vid_cap.vbq, vma);
}
/* video device file operations */
@@ -556,13 +535,6 @@ static int fimc_cap_s_fmt_mplane(struct file *file, void *priv,
if (ret)
return ret;
- if (mutex_lock_interruptible(&fimc->lock))
- return -ERESTARTSYS;
-
- if (fimc_capture_active(fimc)) {
- ret = -EBUSY;
- goto sf_unlock;
- }
if (vb2_is_streaming(&fimc->vid_cap.vbq) || fimc_capture_active(fimc))
return -EBUSY;
@@ -572,8 +544,7 @@ static int fimc_cap_s_fmt_mplane(struct file *file, void *priv,
frame->fmt = find_format(f, FMT_FLAGS_M2M | FMT_FLAGS_CAM);
if (!frame->fmt) {
err("fimc target format not found\n");
- ret = -EINVAL;
- goto sf_unlock;
+ return -EINVAL;
}
for (i = 0; i < frame->fmt->colplanes; i++)
@@ -590,12 +561,9 @@ static int fimc_cap_s_fmt_mplane(struct file *file, void *priv,
frame->offs_h = 0;
frame->offs_v = 0;
- ret = sync_capture_fmt(ctx);
-
ctx->state |= (FIMC_PARAMS | FIMC_DST_FMT);
-sf_unlock:
- mutex_unlock(&fimc->lock);
+ ret = sync_capture_fmt(ctx);
return ret;
}
@@ -624,21 +592,16 @@ static int fimc_cap_s_input(struct file *file, void *priv,
struct fimc_ctx *ctx = priv;
struct fimc_dev *fimc = ctx->fimc_dev;
struct s3c_platform_fimc *pdata = fimc->pdata;
- int ret;
if (fimc_capture_active(ctx->fimc_dev))
return -EBUSY;
- if (mutex_lock_interruptible(&fimc->lock))
- return -ERESTARTSYS;
+ if (i >= FIMC_MAX_CAMIF_CLIENTS || !pdata->isp_info[i])
+ return -EINVAL;
- if (i >= FIMC_MAX_CAMIF_CLIENTS || !pdata->isp_info[i]) {
- ret = -EINVAL;
- goto si_unlock;
- }
if (fimc->vid_cap.sd) {
- ret = v4l2_subdev_call(fimc->vid_cap.sd, core, s_power, 0);
+ int ret = v4l2_subdev_call(fimc->vid_cap.sd, core, s_power, 0);
if (ret)
err("s_power failed: %d", ret);
}
@@ -646,11 +609,7 @@ static int fimc_cap_s_input(struct file *file, void *priv,
/* Release the attached sensor subdevice. */
fimc_subdev_unregister(fimc);
- ret = fimc_isp_subdev_init(fimc, i);
-
-si_unlock:
- mutex_unlock(&fimc->lock);
- return ret;
+ return fimc_isp_subdev_init(fimc, i);
}
static int fimc_cap_g_input(struct file *file, void *priv,
@@ -666,112 +625,41 @@ static int fimc_cap_g_input(struct file *file, void *priv,
static int fimc_cap_streamon(struct file *file, void *priv,
enum v4l2_buf_type type)
{
- struct s3c_fimc_isp_info *isp_info;
struct fimc_ctx *ctx = priv;
struct fimc_dev *fimc = ctx->fimc_dev;
- int ret = -EBUSY;
-
- if (mutex_lock_interruptible(&fimc->lock))
- return -ERESTARTSYS;
if (fimc_capture_active(fimc) || !fimc->vid_cap.sd)
- goto s_unlock;
+ return -EBUSY;
if (!(ctx->state & FIMC_DST_FMT)) {
v4l2_err(&fimc->vid_cap.v4l2_dev, "Format is not set\n");
- ret = -EINVAL;
- goto s_unlock;
- }
-
- ret = v4l2_subdev_call(fimc->vid_cap.sd, video, s_stream, 1);
- if (ret && ret != -ENOIOCTLCMD)
- goto s_unlock;
-
- ret = fimc_prepare_config(ctx, ctx->state);
- if (ret)
- goto s_unlock;
-
- isp_info = fimc->pdata->isp_info[fimc->vid_cap.input_index];
- fimc_hw_set_camera_type(fimc, isp_info);
- fimc_hw_set_camera_source(fimc, isp_info);
- fimc_hw_set_camera_offset(fimc, &ctx->s_frame);
-
- if (ctx->state & FIMC_PARAMS) {
- ret = fimc_set_scaler_info(ctx);
- if (ret) {
- err("Scaler setup error");
- goto s_unlock;
- }
- fimc_hw_set_input_path(ctx);
- fimc_hw_set_scaler(ctx);
- fimc_hw_set_target_format(ctx);
- fimc_hw_set_rotation(ctx);
- fimc_hw_set_effect(ctx);
+ return -EINVAL;
}
- fimc_hw_set_output_path(ctx);
- fimc_hw_set_out_dma(ctx);
-
- INIT_LIST_HEAD(&fimc->vid_cap.pending_buf_q);
- INIT_LIST_HEAD(&fimc->vid_cap.active_buf_q);
- fimc->vid_cap.active_buf_cnt = 0;
- fimc->vid_cap.frame_count = 0;
- fimc->vid_cap.buf_index = fimc_hw_get_frame_index(fimc);
-
- set_bit(ST_CAPT_PEND, &fimc->state);
- ret = vb2_streamon(&fimc->vid_cap.vbq, type);
-
-s_unlock:
- mutex_unlock(&fimc->lock);
- return ret;
+ return vb2_streamon(&fimc->vid_cap.vbq, type);
}
static int fimc_cap_streamoff(struct file *file, void *priv,
- enum v4l2_buf_type type)
+ enum v4l2_buf_type type)
{
struct fimc_ctx *ctx = priv;
struct fimc_dev *fimc = ctx->fimc_dev;
- struct fimc_vid_cap *cap = &fimc->vid_cap;
- unsigned long flags;
- int ret;
-
- spin_lock_irqsave(&fimc->slock, flags);
- if (!fimc_capture_running(fimc) && !fimc_capture_pending(fimc)) {
- spin_unlock_irqrestore(&fimc->slock, flags);
- dbg("state: 0x%lx", fimc->state);
- return -EINVAL;
- }
- spin_unlock_irqrestore(&fimc->slock, flags);
-
- if (mutex_lock_interruptible(&fimc->lock))
- return -ERESTARTSYS;
- fimc_stop_capture(fimc);
- ret = vb2_streamoff(&cap->vbq, type);
-
- mutex_unlock(&fimc->lock);
- return ret;
+ return vb2_streamoff(&fimc->vid_cap.vbq, type);
}
static int fimc_cap_reqbufs(struct file *file, void *priv,
struct v4l2_requestbuffers *reqbufs)
{
struct fimc_ctx *ctx = priv;
- struct fimc_dev *fimc = ctx->fimc_dev;
- struct fimc_vid_cap *cap = &fimc->vid_cap;
+ struct fimc_vid_cap *cap = &ctx->fimc_dev->vid_cap;
int ret;
- if (fimc_capture_active(ctx->fimc_dev))
- return -EBUSY;
-
- if (mutex_lock_interruptible(&fimc->lock))
- return -ERESTARTSYS;
ret = vb2_reqbufs(&cap->vbq, reqbufs);
if (!ret)
cap->reqbufs_count = reqbufs->count;
- mutex_unlock(&fimc->lock);
return ret;
}
@@ -781,9 +669,6 @@ static int fimc_cap_querybuf(struct file *file, void *priv,
struct fimc_ctx *ctx = priv;
struct fimc_vid_cap *cap = &ctx->fimc_dev->vid_cap;
- if (fimc_capture_active(ctx->fimc_dev))
- return -EBUSY;
-
return vb2_querybuf(&cap->vbq, buf);
}
@@ -791,33 +676,16 @@ static int fimc_cap_qbuf(struct file *file, void *priv,
struct v4l2_buffer *buf)
{
struct fimc_ctx *ctx = priv;
- struct fimc_dev *fimc = ctx->fimc_dev;
- struct fimc_vid_cap *cap = &fimc->vid_cap;
- int ret;
-
- if (mutex_lock_interruptible(&fimc->lock))
- return -ERESTARTSYS;
-
- ret = vb2_qbuf(&cap->vbq, buf);
-
- mutex_unlock(&fimc->lock);
- return ret;
+ struct fimc_vid_cap *cap = &ctx->fimc_dev->vid_cap;
+ return vb2_qbuf(&cap->vbq, buf);
}
static int fimc_cap_dqbuf(struct file *file, void *priv,
struct v4l2_buffer *buf)
{
struct fimc_ctx *ctx = priv;
- int ret;
-
- if (mutex_lock_interruptible(&ctx->fimc_dev->lock))
- return -ERESTARTSYS;
-
- ret = vb2_dqbuf(&ctx->fimc_dev->vid_cap.vbq, buf,
+ return vb2_dqbuf(&ctx->fimc_dev->vid_cap.vbq, buf,
file->f_flags & O_NONBLOCK);
-
- mutex_unlock(&ctx->fimc_dev->lock);
- return ret;
}
static int fimc_cap_s_ctrl(struct file *file, void *priv,
@@ -826,9 +694,6 @@ static int fimc_cap_s_ctrl(struct file *file, void *priv,
struct fimc_ctx *ctx = priv;
int ret = -EINVAL;
- if (mutex_lock_interruptible(&ctx->fimc_dev->lock))
- return -ERESTARTSYS;
-
/* Allow any controls but 90/270 rotation while streaming */
if (!fimc_capture_active(ctx->fimc_dev) ||
ctrl->id != V4L2_CID_ROTATE ||
@@ -843,8 +708,6 @@ static int fimc_cap_s_ctrl(struct file *file, void *priv,
if (ret == -EINVAL)
ret = v4l2_subdev_call(ctx->fimc_dev->vid_cap.sd,
core, s_ctrl, ctrl);
-
- mutex_unlock(&ctx->fimc_dev->lock);
return ret;
}
@@ -853,13 +716,10 @@ static int fimc_cap_cropcap(struct file *file, void *fh,
{
struct fimc_frame *f;
struct fimc_ctx *ctx = fh;
- struct fimc_dev *fimc = ctx->fimc_dev;
if (cr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
return -EINVAL;
- if (mutex_lock_interruptible(&fimc->lock))
- return -ERESTARTSYS;
f = &ctx->s_frame;
cr->bounds.left = 0;
@@ -868,7 +728,6 @@ static int fimc_cap_cropcap(struct file *file, void *fh,
cr->bounds.height = f->o_height;
cr->defrect = cr->bounds;
- mutex_unlock(&fimc->lock);
return 0;
}
@@ -876,19 +735,14 @@ static int fimc_cap_g_crop(struct file *file, void *fh, struct v4l2_crop *cr)
{
struct fimc_frame *f;
struct fimc_ctx *ctx = file->private_data;
- struct fimc_dev *fimc = ctx->fimc_dev;
-
-
- if (mutex_lock_interruptible(&fimc->lock))
- return -ERESTARTSYS;
f = &ctx->s_frame;
+
cr->c.left = f->offs_h;
cr->c.top = f->offs_v;
cr->c.width = f->width;
cr->c.height = f->height;
- mutex_unlock(&fimc->lock);
return 0;
}
@@ -907,13 +761,10 @@ static int fimc_cap_s_crop(struct file *file, void *fh,
if (ret)
return ret;
- if (mutex_lock_interruptible(&fimc->lock))
- return -ERESTARTSYS;
-
if (!(ctx->state & FIMC_DST_FMT)) {
v4l2_err(&fimc->vid_cap.v4l2_dev,
"Capture color format not set\n");
- goto sc_unlock;
+ return -EINVAL; /* TODO: make sure this is the right value */
}
f = &ctx->s_frame;
@@ -921,17 +772,15 @@ static int fimc_cap_s_crop(struct file *file, void *fh,
ret = fimc_check_scaler_ratio(&cr->c, &ctx->d_frame);
if (ret) {
v4l2_err(&fimc->vid_cap.v4l2_dev, "Out of the scaler range");
- } else {
- ret = 0;
- f->offs_h = cr->c.left;
- f->offs_v = cr->c.top;
- f->width = cr->c.width;
- f->height = cr->c.height;
+ return ret;
}
-sc_unlock:
- mutex_unlock(&fimc->lock);
- return ret;
+ f->offs_h = cr->c.left;
+ f->offs_v = cr->c.top;
+ f->width = cr->c.width;
+ f->height = cr->c.height;
+
+ return 0;
}
@@ -1014,6 +863,7 @@ int fimc_register_capture_device(struct fimc_dev *fimc)
vfd->ioctl_ops = &fimc_capture_ioctl_ops;
vfd->minor = -1;
vfd->release = video_device_release;
+ vfd->lock = &fimc->lock;
video_set_drvdata(vfd, fimc);
vid_cap = &fimc->vid_cap;
@@ -741,22 +741,17 @@ int fimc_vidioc_g_fmt_mplane(struct file *file, void *priv,
struct v4l2_format *f)
{
struct fimc_ctx *ctx = priv;
- struct fimc_dev *fimc = ctx->fimc_dev;
struct fimc_frame *frame;
frame = ctx_get_frame(ctx, f->type);
if (IS_ERR(frame))
return PTR_ERR(frame);
- if (mutex_lock_interruptible(&fimc->lock))
- return -ERESTARTSYS;
-
f->fmt.pix.width = frame->width;
f->fmt.pix.height = frame->height;
f->fmt.pix.field = V4L2_FIELD_NONE;
f->fmt.pix.pixelformat = frame->fmt->fourcc;
- mutex_unlock(&fimc->lock);
return 0;
}
@@ -800,7 +795,8 @@ int fimc_vidioc_try_fmt_mplane(struct file *file, void *priv,
struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
struct fimc_fmt *fmt;
u32 max_width, mod_x, mod_y, mask;
- int ret, i, is_output = 0;
+ int i, is_output = 0;
+
if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
if (ctx->state & FIMC_CTX_CAP)
@@ -810,8 +806,6 @@ int fimc_vidioc_try_fmt_mplane(struct file *file, void *priv,
return -EINVAL;
}
- if (mutex_lock_interruptible(&fimc->lock))
- return -ERESTARTSYS;
dbg("w: %d, h: %d", pix->width, pix->height);
mask = is_output ? FMT_FLAGS_M2M : FMT_FLAGS_M2M | FMT_FLAGS_CAM;
@@ -819,13 +813,13 @@ int fimc_vidioc_try_fmt_mplane(struct file *file, void *priv,
if (!fmt) {
v4l2_err(&fimc->m2m.v4l2_dev, "Fourcc format (0x%X) invalid.\n",
pix->pixelformat);
- goto tf_out;
+ return -EINVAL;
}
if (pix->field == V4L2_FIELD_ANY)
pix->field = V4L2_FIELD_NONE;
else if (V4L2_FIELD_NONE != pix->field)
- goto tf_out;
+ return -EINVAL;
if (is_output) {
max_width = variant->pix_limit->scaler_dis_w;
@@ -871,11 +865,7 @@ int fimc_vidioc_try_fmt_mplane(struct file *file, void *priv,
pix->plane_fmt[i].sizeimage);
}
- ret = 0;
-
-tf_out:
- mutex_unlock(&fimc->lock);
- return ret;
+ return 0;
}
static int fimc_m2m_s_fmt_mplane(struct file *file, void *priv,
@@ -888,45 +878,33 @@ static int fimc_m2m_s_fmt_mplane(struct file *file, void *priv,
struct v4l2_pix_format_mplane *pix;
unsigned long flags;
int i, ret = 0;
+ u32 tmp;
ret = fimc_vidioc_try_fmt_mplane(file, priv, f);
if (ret)
return ret;
- if (mutex_lock_interruptible(&fimc->lock))
- return -ERESTARTSYS;
-
vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
if (vb2_is_streaming(vq)) {
- v4l2_err(&fimc->vid_cap.v4l2_dev, "%s: queue (%d) busy\n",
- __func__, f->type);
- ret = -EBUSY;
- goto sf_out;
+ v4l2_err(&fimc->m2m.v4l2_dev, "queue (%d) busy\n", f->type);
+ return -EBUSY;
}
- spin_lock_irqsave(&ctx->slock, flags);
if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
frame = &ctx->s_frame;
- ctx->state |= FIMC_SRC_FMT;
} else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
frame = &ctx->d_frame;
- ctx->state |= FIMC_DST_FMT;
} else {
- spin_unlock_irqrestore(&ctx->slock, flags);
v4l2_err(&fimc->m2m.v4l2_dev,
"Wrong buffer/video queue type (%d)\n", f->type);
- ret = -EINVAL;
- goto sf_out;
+ return -EINVAL;
}
- spin_unlock_irqrestore(&ctx->slock, flags);
pix = &f->fmt.pix_mp;
frame->fmt = find_format(f, FMT_FLAGS_M2M);
- if (!frame->fmt) {
- ret = -EINVAL;
- goto sf_out;
- }
+ if (!frame->fmt)
+ return -EINVAL;
for (i = 0; i < frame->fmt->colplanes; i++)
frame->payload[i] = pix->plane_fmt[i].bytesperline * pix->height;
@@ -942,14 +920,13 @@ static int fimc_m2m_s_fmt_mplane(struct file *file, void *priv,
frame->offs_v = 0;
spin_lock_irqsave(&ctx->slock, flags);
- ctx->state |= FIMC_PARAMS;
+ tmp = (frame == &ctx->d_frame) ? FIMC_DST_FMT : FIMC_SRC_FMT;
+ ctx->state |= FIMC_PARAMS | tmp;
spin_unlock_irqrestore(&ctx->slock, flags);
dbg("f_w: %d, f_h: %d", frame->f_width, frame->f_height);
-sf_out:
- mutex_unlock(&fimc->lock);
- return ret;
+ return 0;
}
static int fimc_m2m_reqbufs(struct file *file, void *priv,
@@ -1014,11 +991,8 @@ int fimc_vidioc_queryctrl(struct file *file, void *priv,
}
if (ctx->state & FIMC_CTX_CAP) {
- if (mutex_lock_interruptible(&ctx->fimc_dev->lock))
- return -ERESTARTSYS;
- ret = v4l2_subdev_call(ctx->fimc_dev->vid_cap.sd,
+ return v4l2_subdev_call(ctx->fimc_dev->vid_cap.sd,
core, queryctrl, qc);
- mutex_unlock(&ctx->fimc_dev->lock);
}
return ret;
}
@@ -1028,10 +1002,6 @@ int fimc_vidioc_g_ctrl(struct file *file, void *priv,
{
struct fimc_ctx *ctx = priv;
struct fimc_dev *fimc = ctx->fimc_dev;
- int ret = 0;
-
- if (mutex_lock_interruptible(&fimc->lock))
- return -ERESTARTSYS;
switch (ctrl->id) {
case V4L2_CID_HFLIP:
@@ -1045,18 +1015,17 @@ int fimc_vidioc_g_ctrl(struct file *file, void *priv,
break;
default:
if (ctx->state & FIMC_CTX_CAP) {
- ret = v4l2_subdev_call(fimc->vid_cap.sd, core,
- g_ctrl, ctrl);
+ return v4l2_subdev_call(fimc->vid_cap.sd, core,
+ g_ctrl, ctrl);
} else {
v4l2_err(&fimc->m2m.v4l2_dev,
"Invalid control\n");
- ret = -EINVAL;
+ return -EINVAL;
}
}
dbg("ctrl->value= %d", ctrl->value);
- mutex_unlock(&fimc->lock);
- return ret;
+ return 0;
}
int check_ctrl_val(struct fimc_ctx *ctx, struct v4l2_control *ctrl)
@@ -1147,22 +1116,17 @@ static int fimc_m2m_cropcap(struct file *file, void *fh,
{
struct fimc_frame *frame;
struct fimc_ctx *ctx = fh;
- struct fimc_dev *fimc = ctx->fimc_dev;
frame = ctx_get_frame(ctx, cr->type);
if (IS_ERR(frame))
return PTR_ERR(frame);
- if (mutex_lock_interruptible(&fimc->lock))
- return -ERESTARTSYS;
-
cr->bounds.left = 0;
cr->bounds.top = 0;
cr->bounds.width = frame->f_width;
cr->bounds.height = frame->f_height;
cr->defrect = cr->bounds;
- mutex_unlock(&fimc->lock);
return 0;
}
@@ -1170,21 +1134,16 @@ static int fimc_m2m_g_crop(struct file *file, void *fh, struct v4l2_crop *cr)
{
struct fimc_frame *frame;
struct fimc_ctx *ctx = file->private_data;
- struct fimc_dev *fimc = ctx->fimc_dev;
frame = ctx_get_frame(ctx, cr->type);
if (IS_ERR(frame))
return PTR_ERR(frame);
- if (mutex_lock_interruptible(&fimc->lock))
- return -ERESTARTSYS;
-
cr->c.left = frame->offs_h;
cr->c.top = frame->offs_v;
cr->c.width = frame->width;
cr->c.height = frame->height;
- mutex_unlock(&fimc->lock);
return 0;
}
@@ -1264,9 +1223,6 @@ static int fimc_m2m_s_crop(struct file *file, void *fh, struct v4l2_crop *cr)
f = (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) ?
&ctx->s_frame : &ctx->d_frame;
- if (mutex_lock_interruptible(&fimc->lock))
- return -ERESTARTSYS;
-
spin_lock_irqsave(&ctx->slock, flags);
if (~ctx->state & (FIMC_SRC_FMT | FIMC_DST_FMT)) {
/* Check to see if scaling ratio is within supported range */
@@ -1276,8 +1232,8 @@ static int fimc_m2m_s_crop(struct file *file, void *fh, struct v4l2_crop *cr)
ret = fimc_check_scaler_ratio(&cr->c, &ctx->s_frame);
if (ret) {
v4l2_err(&fimc->m2m.v4l2_dev, "Out of scaler range");
- ret = -EINVAL;
- goto scr_unlock;
+ spin_unlock_irqrestore(&ctx->slock, flags);
+ return -EINVAL;
}
}
ctx->state |= FIMC_PARAMS;
@@ -1287,9 +1243,7 @@ static int fimc_m2m_s_crop(struct file *file, void *fh, struct v4l2_crop *cr)
f->width = cr->c.width;
f->height = cr->c.height;
-scr_unlock:
spin_unlock_irqrestore(&ctx->slock, flags);
- mutex_unlock(&fimc->lock);
return 0;
}
@@ -1360,10 +1314,6 @@ static int fimc_m2m_open(struct file *file)
{
struct fimc_dev *fimc = video_drvdata(file);
struct fimc_ctx *ctx = NULL;
- int err = 0;
-
- if (mutex_lock_interruptible(&fimc->lock))
- return -ERESTARTSYS;
dbg("pid: %d, state: 0x%lx, refcnt: %d",
task_pid_nr(current), fimc->state, fimc->vid_cap.refcnt);
@@ -1372,19 +1322,15 @@ static int fimc_m2m_open(struct file *file)
* Return if the corresponding video capture node
* is already opened.
*/
- if (fimc->vid_cap.refcnt > 0) {
- err = -EBUSY;
- goto err_unlock;
- }
+ if (fimc->vid_cap.refcnt > 0)
+ return -EBUSY;
fimc->m2m.refcnt++;
set_bit(ST_OUTDMA_RUN, &fimc->state);
ctx = kzalloc(sizeof *ctx, GFP_KERNEL);
- if (!ctx) {
- err = -ENOMEM;
- goto err_unlock;
- }
+ if (!ctx)
+ return -ENOMEM;
file->private_data = ctx;
ctx->fimc_dev = fimc;
@@ -1400,13 +1346,12 @@ static int fimc_m2m_open(struct file *file)
ctx->m2m_ctx = v4l2_m2m_ctx_init(fimc->m2m.m2m_dev, ctx, queue_init);
if (IS_ERR(ctx->m2m_ctx)) {
- err = PTR_ERR(ctx->m2m_ctx);
+ int err = PTR_ERR(ctx->m2m_ctx);
kfree(ctx);
+ return err;
}
-err_unlock:
- mutex_unlock(&fimc->lock);
- return err;
+ return 0;
}
static int fimc_m2m_release(struct file *file)
@@ -1414,8 +1359,6 @@ static int fimc_m2m_release(struct file *file)
struct fimc_ctx *ctx = file->private_data;
struct fimc_dev *fimc = ctx->fimc_dev;
- mutex_lock(&fimc->lock);
-
dbg("pid: %d, state: 0x%lx, refcnt= %d",
task_pid_nr(current), fimc->state, fimc->m2m.refcnt);
@@ -1424,7 +1367,6 @@ static int fimc_m2m_release(struct file *file)
if (--fimc->m2m.refcnt <= 0)
clear_bit(ST_OUTDMA_RUN, &fimc->state);
- mutex_unlock(&fimc->lock);
return 0;
}
@@ -1490,6 +1432,7 @@ static int fimc_register_m2m_device(struct fimc_dev *fimc)
vfd->ioctl_ops = &fimc_m2m_ioctl_ops;
vfd->minor = -1;
vfd->release = video_device_release;
+ vfd->lock = &fimc->lock;
snprintf(vfd->name, sizeof(vfd->name), "%s:m2m", dev_name(&pdev->dev));