From: Fabio Estevam <fabio.estevam@xxxxxxxxxxxxx>
Some resources were not being released in the error path and some were released
in the incorrect order.
Signed-off-by: Fabio Estevam <fabio.estevam@xxxxxxxxxxxxx>
---
Changes since v2:
- Newly introduced in this series
drivers/media/platform/coda.c | 32 ++++++++++++++++++++------------
1 file changed, 20 insertions(+), 12 deletions(-)
diff --git a/drivers/media/platform/coda.c b/drivers/media/platform/coda.c
index df4ada88..ea16c20 100644
--- a/drivers/media/platform/coda.c
+++ b/drivers/media/platform/coda.c
@@ -1514,15 +1514,17 @@ 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);
@@ -1537,12 +1539,12 @@ 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;
@@ -1552,7 +1554,7 @@ 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);
@@ -1567,9 +1569,15 @@ static int coda_open(struct file *file)
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:
v4l2_fh_del(&ctx->fh);
v4l2_fh_exit(&ctx->fh);
+ clear_bit(ctx->idx, &dev->instance_mask);
+err_coda_max:
kfree(ctx);
return ret;
}
@@ -1582,16 +1590,16 @@ static int coda_release(struct file *file)
v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Releasing instance %p\n",
ctx);
+ clk_disable_unprepare(dev->clk_ahb);
+ clk_disable_unprepare(dev->clk_per);
coda_lock(ctx);
list_del(&ctx->list);
coda_unlock(ctx);
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);
- clk_disable_unprepare(dev->clk_ahb);
+ v4l2_m2m_ctx_release(ctx->m2m_ctx);
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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