From: Laurent Pinchart <laurent.pinchart@ideasonboard.com> To: linux-media@vger.kernel.org Cc: Dafna Hirschfeld <dafna@fastmail.com>, Heiko Stuebner <heiko@sntech.de>, Paul Elder <paul.elder@ideasonboard.com>, Tomasz Figa <tfiga@google.com>, linux-rockchip@lists.infradead.org Subject: [PATCH 02/16] media: rkisp1: capture: Fix and simplify (un)registration Date: Sun, 27 Feb 2022 18:01:02 +0200 [thread overview] Message-ID: <20220227160116.18556-3-laurent.pinchart@ideasonboard.com> (raw) In-Reply-To: <20220227160116.18556-1-laurent.pinchart@ideasonboard.com> The rkisp1_register_capture() and rkisp1_unregister_capture() functions don't destroy the mutex (in the error path for the former). Fix this and make rkisp1_unregister_capture() and rkisp1_capture_devs_unregister() safe to be called on an unregistered capture node to prepare for simplification of error handling at probe time. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> --- .../platform/rockchip/rkisp1/rkisp1-capture.c | 26 ++++++++++--------- 1 file changed, 14 insertions(+), 12 deletions(-) diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c index 9c11f2b8e5f5..18be7c982db7 100644 --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c @@ -1312,8 +1312,12 @@ static const struct v4l2_file_operations rkisp1_fops = { static void rkisp1_unregister_capture(struct rkisp1_capture *cap) { + if (!cap->rkisp1) + return; + media_entity_cleanup(&cap->vnode.vdev.entity); vb2_video_unregister_device(&cap->vnode.vdev); + mutex_destroy(&cap->vnode.vlock); } void rkisp1_capture_devs_unregister(struct rkisp1_device *rkisp1) @@ -1390,6 +1394,8 @@ static int rkisp1_register_capture(struct rkisp1_capture *cap) error: media_entity_cleanup(&vdev->entity); + mutex_destroy(&node->vlock); + cap->rkisp1 = NULL; return ret; } @@ -1425,26 +1431,22 @@ rkisp1_capture_init(struct rkisp1_device *rkisp1, enum rkisp1_stream_id id) int rkisp1_capture_devs_register(struct rkisp1_device *rkisp1) { - struct rkisp1_capture *cap; - unsigned int i, j; + unsigned int i; int ret; for (i = 0; i < ARRAY_SIZE(rkisp1->capture_devs); i++) { + struct rkisp1_capture *cap = &rkisp1->capture_devs[i]; + rkisp1_capture_init(rkisp1, i); - cap = &rkisp1->capture_devs[i]; cap->rkisp1 = rkisp1; + ret = rkisp1_register_capture(cap); - if (ret) - goto err_unreg_capture_devs; + if (ret) { + rkisp1_capture_devs_unregister(rkisp1); + return ret; + } } return 0; -err_unreg_capture_devs: - for (j = 0; j < i; j++) { - cap = &rkisp1->capture_devs[j]; - rkisp1_unregister_capture(cap); - } - - return ret; } -- Regards, Laurent Pinchart
WARNING: multiple messages have this Message-ID (diff)
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com> To: linux-media@vger.kernel.org Cc: Dafna Hirschfeld <dafna@fastmail.com>, Heiko Stuebner <heiko@sntech.de>, Paul Elder <paul.elder@ideasonboard.com>, Tomasz Figa <tfiga@google.com>, linux-rockchip@lists.infradead.org Subject: [PATCH 02/16] media: rkisp1: capture: Fix and simplify (un)registration Date: Sun, 27 Feb 2022 18:01:02 +0200 [thread overview] Message-ID: <20220227160116.18556-3-laurent.pinchart@ideasonboard.com> (raw) In-Reply-To: <20220227160116.18556-1-laurent.pinchart@ideasonboard.com> The rkisp1_register_capture() and rkisp1_unregister_capture() functions don't destroy the mutex (in the error path for the former). Fix this and make rkisp1_unregister_capture() and rkisp1_capture_devs_unregister() safe to be called on an unregistered capture node to prepare for simplification of error handling at probe time. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> --- .../platform/rockchip/rkisp1/rkisp1-capture.c | 26 ++++++++++--------- 1 file changed, 14 insertions(+), 12 deletions(-) diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c index 9c11f2b8e5f5..18be7c982db7 100644 --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c @@ -1312,8 +1312,12 @@ static const struct v4l2_file_operations rkisp1_fops = { static void rkisp1_unregister_capture(struct rkisp1_capture *cap) { + if (!cap->rkisp1) + return; + media_entity_cleanup(&cap->vnode.vdev.entity); vb2_video_unregister_device(&cap->vnode.vdev); + mutex_destroy(&cap->vnode.vlock); } void rkisp1_capture_devs_unregister(struct rkisp1_device *rkisp1) @@ -1390,6 +1394,8 @@ static int rkisp1_register_capture(struct rkisp1_capture *cap) error: media_entity_cleanup(&vdev->entity); + mutex_destroy(&node->vlock); + cap->rkisp1 = NULL; return ret; } @@ -1425,26 +1431,22 @@ rkisp1_capture_init(struct rkisp1_device *rkisp1, enum rkisp1_stream_id id) int rkisp1_capture_devs_register(struct rkisp1_device *rkisp1) { - struct rkisp1_capture *cap; - unsigned int i, j; + unsigned int i; int ret; for (i = 0; i < ARRAY_SIZE(rkisp1->capture_devs); i++) { + struct rkisp1_capture *cap = &rkisp1->capture_devs[i]; + rkisp1_capture_init(rkisp1, i); - cap = &rkisp1->capture_devs[i]; cap->rkisp1 = rkisp1; + ret = rkisp1_register_capture(cap); - if (ret) - goto err_unreg_capture_devs; + if (ret) { + rkisp1_capture_devs_unregister(rkisp1); + return ret; + } } return 0; -err_unreg_capture_devs: - for (j = 0; j < i; j++) { - cap = &rkisp1->capture_devs[j]; - rkisp1_unregister_capture(cap); - } - - return ret; } -- Regards, Laurent Pinchart _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip
next prev parent reply other threads:[~2022-02-27 16:01 UTC|newest] Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-02-27 16:01 [PATCH 00/16] media: rkisp1: Misc bug fixes and cleanups Laurent Pinchart 2022-02-27 16:01 ` Laurent Pinchart 2022-02-27 16:01 ` [PATCH 01/16] media: rkisp1: capture: Initialize entity before video device Laurent Pinchart 2022-02-27 16:01 ` Laurent Pinchart 2022-03-02 14:25 ` Dafna Hirschfeld 2022-03-02 14:25 ` Dafna Hirschfeld 2022-02-27 16:01 ` Laurent Pinchart [this message] 2022-02-27 16:01 ` [PATCH 02/16] media: rkisp1: capture: Fix and simplify (un)registration Laurent Pinchart 2022-03-02 17:10 ` Dafna Hirschfeld 2022-03-02 17:10 ` Dafna Hirschfeld 2022-03-04 12:21 ` Laurent Pinchart 2022-03-04 12:21 ` Laurent Pinchart 2022-02-27 16:01 ` [PATCH 03/16] media: rkisp1: isp: " Laurent Pinchart 2022-02-27 16:01 ` Laurent Pinchart 2022-02-27 16:01 ` [PATCH 04/16] media: rkisp1: resizer: " Laurent Pinchart 2022-02-27 16:01 ` Laurent Pinchart 2022-03-02 19:12 ` Dafna Hirschfeld 2022-03-02 19:12 ` Dafna Hirschfeld 2022-02-27 16:01 ` [PATCH 05/16] media: rkisp1: params: " Laurent Pinchart 2022-02-27 16:01 ` Laurent Pinchart 2022-02-27 16:01 ` [PATCH 06/16] media: rkisp1: stats: Simplify (un)registration Laurent Pinchart 2022-02-27 16:01 ` Laurent Pinchart 2022-02-27 16:01 ` [PATCH 07/16] media: rkisp1: Simplify rkisp1_entities_register() error path Laurent Pinchart 2022-02-27 16:01 ` Laurent Pinchart 2022-03-02 19:16 ` Dafna Hirschfeld 2022-03-02 19:16 ` Dafna Hirschfeld 2022-02-27 16:01 ` [PATCH 08/16] media: rkisp1: regs: Don't use BIT() macro for multi-bit register fields Laurent Pinchart 2022-02-27 16:01 ` Laurent Pinchart 2022-02-27 16:01 ` [PATCH 09/16] media: rkisp1: regs: Rename CCL, ICCL and IRCL registers with VI_ prefix Laurent Pinchart 2022-02-27 16:01 ` Laurent Pinchart 2022-02-27 16:01 ` [PATCH 10/16] media: rkisp1: resizer: Simplify register access Laurent Pinchart 2022-02-27 16:01 ` Laurent Pinchart 2022-02-27 16:10 ` [PATCH v1.1 " Laurent Pinchart 2022-02-27 16:10 ` Laurent Pinchart 2022-03-03 6:32 ` Dafna Hirschfeld 2022-03-03 6:32 ` Dafna Hirschfeld 2022-03-03 8:21 ` Laurent Pinchart 2022-03-03 8:21 ` Laurent Pinchart 2022-03-02 19:34 ` [PATCH " Dafna Hirschfeld 2022-03-02 19:34 ` Dafna Hirschfeld 2022-02-27 16:01 ` [PATCH 11/16] media: rkisp1: Move debugfs code to a separate file Laurent Pinchart 2022-02-27 16:01 ` Laurent Pinchart 2022-02-27 16:01 ` [PATCH 12/16] media: rkisp1: Compile debugfs support conditionally Laurent Pinchart 2022-02-27 16:01 ` Laurent Pinchart 2022-02-28 3:27 ` kernel test robot 2022-02-28 3:27 ` kernel test robot 2022-02-27 16:01 ` [PATCH 13/16] media: rkisp1: debug: Collect input status by sampling ISP_FLAGS_SHD Laurent Pinchart 2022-02-27 16:01 ` Laurent Pinchart 2022-02-27 16:01 ` [PATCH 14/16] media: rkisp1: debug: Add debugfs files to dump core and ISP registers Laurent Pinchart 2022-02-27 16:01 ` Laurent Pinchart 2022-02-27 16:01 ` [PATCH 15/16] media: rkisp1: debug: Move resizer register dump to debugfs Laurent Pinchart 2022-02-27 16:01 ` Laurent Pinchart 2022-02-27 16:01 ` [PATCH 16/16] media: rkisp1: capture: Bypass the main device for handling querycap Laurent Pinchart 2022-02-27 16:01 ` Laurent Pinchart
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