Merge "msm: camera: core: Avoid concurrency between stop and pfdump" into camera-kernel.lnx.1.0 (57dcb742) · Commits · e / devices / android_kernel_fairphone_FP4

drivers/cam_core/cam_context.c

+3 −1

Original line number	Diff line number	Diff line
		// SPDX-License-Identifier: GPL-2.0-only
		/*
		* Copyright (c) 2017-2019, The Linux Foundation. All rights reserved.
		* Copyright (c) 2017-2020, The Linux Foundation. All rights reserved.
		*/

		#include <linux/slab.h>
		@@ -268,6 +268,7 @@ int cam_context_dump_pf_info(struct cam_context *ctx, unsigned long iova,
		return -EINVAL;
		}

		mutex_lock(&ctx->ctx_mutex);
		if ((ctx->state > CAM_CTX_AVAILABLE) &&
		(ctx->state < CAM_CTX_STATE_MAX)) {
		if (ctx->state_machine[ctx->state].pagefault_ops) {
		@@ -278,6 +279,7 @@ int cam_context_dump_pf_info(struct cam_context *ctx, unsigned long iova,
		ctx->dev_hdl, ctx->state);
		}
		}
		mutex_unlock(&ctx->ctx_mutex);

		return rc;
		}

+8 −1

Original line number	Diff line number	Diff line
		// SPDX-License-Identifier: GPL-2.0-only
		/*
		* Copyright (c) 2017-2019, The Linux Foundation. All rights reserved.
		* Copyright (c) 2017-2020, The Linux Foundation. All rights reserved.
		*/

		#include <linux/debugfs.h>
		@@ -296,6 +296,13 @@ int32_t cam_context_config_dev_to_hw(
		return rc;
		}

		if ((len < sizeof(struct cam_packet)) \|\|
		(cmd->offset >= (len - sizeof(struct cam_packet)))) {
		CAM_ERR(CAM_CTXT, "Not enough buf, len : %zu offset = %llu",
		len, cmd->offset);
		return -EINVAL;

		}
		packet = (struct cam_packet ) ((uint8_t )packet_addr +
		(uint32_t)cmd->offset);