Some resources were not being released in the error path and some were released
in the incorrect order.
Signed-off-by: Fabio Estevam <fabio.este...@freescale.com>
---
Changes since v3:
- Only disable the clocks after v4l2_m2m_ctx_release()
Changes since v2:
- Newly introduced in this series
drivers/media/platform/coda.c | 38 ++++++++++++++++++++++++--------------
1 file changed, 24 insertions(+), 14 deletions(-)
diff --git a/drivers/media/platform/coda.c b/drivers/media/platform/coda.c
index df4ada88..9384f02 100644
--- a/drivers/media/platform/coda.c
+++ b/drivers/media/platform/coda.c
@@ -1514,21 +1514,26 @@ static int coda_open(struct file *file)
int ret = 0;
int idx;
- idx = coda_next_free_instance(dev);
- if (idx >= CODA_MAX_INSTANCES)
- return -EBUSY;
- set_bit(idx, &dev->instance_mask);
-
ctx = kzalloc(sizeof *ctx, GFP_KERNEL);
if (!ctx)
return -ENOMEM;
+ idx = coda_next_free_instance(dev);
+ if (idx >= CODA_MAX_INSTANCES) {
+ ret = -EBUSY;
+ goto err_coda_max;
+ }
+ set_bit(idx, &dev->instance_mask);
+
v4l2_fh_init(&ctx->fh, video_devdata(file));
file->private_data = &ctx->fh;
v4l2_fh_add(&ctx->fh);
ctx->dev = dev;
ctx->idx = idx;
+ clk_prepare_enable(dev->clk_per);
+ clk_prepare_enable(dev->clk_ahb);
+
set_default_params(ctx);
ctx->m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx,
&coda_queue_init);
@@ -1537,12 +1542,12 @@ static int coda_open(struct file *file)
v4l2_err(&dev->v4l2_dev, "%s return error (%d)\n",
__func__, ret);
- goto err;
+ goto err_ctx_init;
}
ret = coda_ctrls_setup(ctx);
if (ret) {
v4l2_err(&dev->v4l2_dev, "failed to setup coda controls\n");
- goto err;
+ goto err_ctrls_setup;
}
ctx->fh.ctrl_handler = &ctx->ctrls;
@@ -1552,24 +1557,29 @@ static int coda_open(struct file *file)
if (!ctx->parabuf.vaddr) {
v4l2_err(&dev->v4l2_dev, "failed to allocate parabuf");
ret = -ENOMEM;
- goto err;
+ goto err_dma_alloc;
}
coda_lock(ctx);
list_add(&ctx->list, &dev->instances);
coda_unlock(ctx);
- clk_prepare_enable(dev->clk_per);
- clk_prepare_enable(dev->clk_ahb);
-
v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Created instance %d (%p)\n",
ctx->idx, ctx);
return 0;
-err:
+err_dma_alloc:
+ v4l2_ctrl_handler_free(&ctx->ctrls);
+err_ctrls_setup:
+ v4l2_m2m_ctx_release(ctx->m2m_ctx);
+err_ctx_init:
+ clk_disable_unprepare(dev->clk_ahb);
+ clk_disable_unprepare(dev->clk_per);
v4l2_fh_del(&ctx->fh);
v4l2_fh_exit(&ctx->fh);
+ clear_bit(ctx->idx, &dev->instance_mask);
+err_coda_max:
kfree(ctx);
return ret;
}
@@ -1588,10 +1598,10 @@ static int coda_release(struct file *file)
dma_free_coherent(&dev->plat_dev->dev, CODA_PARA_BUF_SIZE,
ctx->parabuf.vaddr, ctx->parabuf.paddr);
- v4l2_m2m_ctx_release(ctx->m2m_ctx);
v4l2_ctrl_handler_free(&ctx->ctrls);
- clk_disable_unprepare(dev->clk_per);
+ v4l2_m2m_ctx_release(ctx->m2m_ctx);
clk_disable_unprepare(dev->clk_ahb);
+ clk_disable_unprepare(dev->clk_per);
v4l2_fh_del(&ctx->fh);
v4l2_fh_exit(&ctx->fh);
clear_bit(ctx->idx, &dev->instance_mask);
--
1.8.1.2
--
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