Re: [PATCH 1/3] drm/msm: dsi host: add missing of_node_put()
On 06/22/2015 09:30 PM, Srinivas Kandagatla wrote: On 22/06/15 15:54, Archit Taneja wrote: Decrement device node refcount if of_get_child_by_name is successfully called. Signed-off-by: Archit Taneja --- drivers/gpu/drm/msm/dsi/dsi_host.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index de04009..1751659 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -1582,6 +1582,8 @@ int msm_dsi_host_register(struct mipi_dsi_host *host, bool check_defer) node = of_get_child_by_name(msm_host->pdev->dev.of_node, "panel"); if (node) { +of_node_put(node); + Atleast from the current state of code, It looks like the driver is going to refer to the node of_node_put?, So I think this is not the right place to have of_node_put. That's right. I made the same mistake in the later patches too. I'll fix these. Thanks, Archit -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH 1/3] drm/msm: dsi host: add missing of_node_put()
On 22/06/15 15:54, Archit Taneja wrote: Decrement device node refcount if of_get_child_by_name is successfully called. Signed-off-by: Archit Taneja --- drivers/gpu/drm/msm/dsi/dsi_host.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index de04009..1751659 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -1582,6 +1582,8 @@ int msm_dsi_host_register(struct mipi_dsi_host *host, bool check_defer) node = of_get_child_by_name(msm_host->pdev->dev.of_node, "panel"); if (node) { + of_node_put(node); + Atleast from the current state of code, It looks like the driver is going to refer to the node of_node_put?, So I think this is not the right place to have of_node_put. > if (!of_drm_find_panel(node)) return -EPROBE_DEFER; } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in Please read the FAQ at http://www.tux.org/lkml/
[PATCH 1/3] drm/msm: dsi host: add missing of_node_put()
Decrement device node refcount if of_get_child_by_name is successfully called. Signed-off-by: Archit Taneja --- drivers/gpu/drm/msm/dsi/dsi_host.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index de04009..1751659 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -1582,6 +1582,8 @@ int msm_dsi_host_register(struct mipi_dsi_host *host, bool check_defer) node = of_get_child_by_name(msm_host->pdev->dev.of_node, "panel"); if (node) { + of_node_put(node); + if (!of_drm_find_panel(node)) return -EPROBE_DEFER; } -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, hosted by The Linux Foundation -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH 1/3] drm/msm: dsi host: add missing of_node_put()
On 22/06/15 15:54, Archit Taneja wrote: Decrement device node refcount if of_get_child_by_name is successfully called. Signed-off-by: Archit Taneja arch...@codeaurora.org --- drivers/gpu/drm/msm/dsi/dsi_host.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index de04009..1751659 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -1582,6 +1582,8 @@ int msm_dsi_host_register(struct mipi_dsi_host *host, bool check_defer) node = of_get_child_by_name(msm_host-pdev-dev.of_node, panel); if (node) { + of_node_put(node); + Atleast from the current state of code, It looks like the driver is going to refer to the node of_node_put?, So I think this is not the right place to have of_node_put. if (!of_drm_find_panel(node)) return -EPROBE_DEFER; } -- To unsubscribe from this list: send the line unsubscribe linux-kernel in Please read the FAQ at http://www.tux.org/lkml/
[PATCH 1/3] drm/msm: dsi host: add missing of_node_put()
Decrement device node refcount if of_get_child_by_name is successfully called. Signed-off-by: Archit Taneja arch...@codeaurora.org --- drivers/gpu/drm/msm/dsi/dsi_host.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index de04009..1751659 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -1582,6 +1582,8 @@ int msm_dsi_host_register(struct mipi_dsi_host *host, bool check_defer) node = of_get_child_by_name(msm_host-pdev-dev.of_node, panel); if (node) { + of_node_put(node); + if (!of_drm_find_panel(node)) return -EPROBE_DEFER; } -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, hosted by The Linux Foundation -- To unsubscribe from this list: send the line unsubscribe linux-kernel in Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH 1/3] drm/msm: dsi host: add missing of_node_put()
On 06/22/2015 09:30 PM, Srinivas Kandagatla wrote: On 22/06/15 15:54, Archit Taneja wrote: Decrement device node refcount if of_get_child_by_name is successfully called. Signed-off-by: Archit Taneja arch...@codeaurora.org --- drivers/gpu/drm/msm/dsi/dsi_host.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index de04009..1751659 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -1582,6 +1582,8 @@ int msm_dsi_host_register(struct mipi_dsi_host *host, bool check_defer) node = of_get_child_by_name(msm_host-pdev-dev.of_node, panel); if (node) { +of_node_put(node); + Atleast from the current state of code, It looks like the driver is going to refer to the node of_node_put?, So I think this is not the right place to have of_node_put. That's right. I made the same mistake in the later patches too. I'll fix these. Thanks, Archit -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project -- To unsubscribe from this list: send the line unsubscribe linux-kernel in Please read the FAQ at http://www.tux.org/lkml/