When trying out 6.13 cocci, some bugs were found.
Signed-off-by: Ricardo Ribalda ribalda@chromium.org --- Changes in v2: - Squash fixes and port to cleanup.h. - Link to v1: https://lore.kernel.org/r/20250121-nuvoton-v1-0-1ea4f0cdbda2@chromium.org
--- Ricardo Ribalda (2): media: nuvoton: Fix reference handling of ece_node media: nuvoton: Fix reference handling of ece_pdev
drivers/media/platform/nuvoton/npcm-video.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) --- base-commit: c2b96a6818159fba8a3bcc38262da9e77f9b3ec7 change-id: 20250121-nuvoton-fe870cbeffb6
Best regards,
Make sure all the code paths call of_node_put().
Instead of manually calling of_node_put, use the __free macros/helpers.
Cc: stable@vger.kernel.org Fixes: 46c15a4ff1f4 ("media: nuvoton: Add driver for NPCM video capture and encoding engine") Signed-off-by: Ricardo Ribalda ribalda@chromium.org --- drivers/media/platform/nuvoton/npcm-video.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/media/platform/nuvoton/npcm-video.c b/drivers/media/platform/nuvoton/npcm-video.c index 024cd8ee1709..0547f119c38f 100644 --- a/drivers/media/platform/nuvoton/npcm-video.c +++ b/drivers/media/platform/nuvoton/npcm-video.c @@ -1648,8 +1648,8 @@ static int npcm_video_setup_video(struct npcm_video *video)
static int npcm_video_ece_init(struct npcm_video *video) { + struct device_node *ece_node __free(device_node) = NULL; struct device *dev = video->dev; - struct device_node *ece_node; struct platform_device *ece_pdev; void __iomem *regs;
@@ -1669,7 +1669,6 @@ static int npcm_video_ece_init(struct npcm_video *video) dev_err(dev, "Failed to find ECE device\n"); return -ENODEV; } - of_node_put(ece_node);
regs = devm_platform_ioremap_resource(ece_pdev, 0); if (IS_ERR(regs)) {
When we obtain a reference to of a platform_device, we need to release it via put_device.
Found by cocci: ./platform/nuvoton/npcm-video.c:1677:3-9: ERROR: missing put_device; call of_find_device_by_node on line 1667, but without a corresponding object release within this function. ./platform/nuvoton/npcm-video.c:1684:3-9: ERROR: missing put_device; call of_find_device_by_node on line 1667, but without a corresponding object release within this function. ./platform/nuvoton/npcm-video.c:1690:3-9: ERROR: missing put_device; call of_find_device_by_node on line 1667, but without a corresponding object release within this function. ./platform/nuvoton/npcm-video.c:1694:1-7: ERROR: missing put_device; call of_find_device_by_node on line 1667, but without a corresponding object release within this function.
Instead of manually calling put_device, use the __free macros.
Cc: stable@vger.kernel.org Fixes: 46c15a4ff1f4 ("media: nuvoton: Add driver for NPCM video capture and encoding engine") Signed-off-by: Ricardo Ribalda ribalda@chromium.org --- drivers/media/platform/nuvoton/npcm-video.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/media/platform/nuvoton/npcm-video.c b/drivers/media/platform/nuvoton/npcm-video.c index 0547f119c38f..7a9d8928ae40 100644 --- a/drivers/media/platform/nuvoton/npcm-video.c +++ b/drivers/media/platform/nuvoton/npcm-video.c @@ -1669,6 +1669,7 @@ static int npcm_video_ece_init(struct npcm_video *video) dev_err(dev, "Failed to find ECE device\n"); return -ENODEV; } + struct device *ece_dev __free(put_device) = &ece_pdev->dev;
regs = devm_platform_ioremap_resource(ece_pdev, 0); if (IS_ERR(regs)) { @@ -1683,7 +1684,7 @@ static int npcm_video_ece_init(struct npcm_video *video) return PTR_ERR(video->ece.regmap); }
- video->ece.reset = devm_reset_control_get(&ece_pdev->dev, NULL); + video->ece.reset = devm_reset_control_get(ece_dev, NULL); if (IS_ERR(video->ece.reset)) { dev_err(dev, "Failed to get ECE reset control in DTS\n"); return PTR_ERR(video->ece.reset);
linux-stable-mirror@lists.linaro.org
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Ricardo Ribalda