Mao Jinlong 35d07b0218 coresight: tmc-etr: Check if page is valid before dma_map_page() ... commit 1cc573d5754e92372a7e30e35468644f8811e1a4 upstream. alloc_pages_node() return should be checked before calling dma_map_page() to make sure that valid page is mapped or else it can lead to aborts as below: Unable to handle kernel paging request at virtual address ffffffc008000000 Mem abort info: <snip>... pc : __dma_inv_area+0x40/0x58 lr : dma_direct_map_page+0xd8/0x1c8 Call trace: __dma_inv_area tmc_pages_alloc tmc_alloc_data_pages tmc_alloc_sg_table tmc_init_etr_sg_table tmc_alloc_etr_buf tmc_enable_etr_sink_sysfs tmc_enable_etr_sink coresight_enable_path coresight_enable enable_source_store dev_attr_store sysfs_kf_write Fixes: 99443ea19e ("coresight: Add generic TMC sg table framework") Cc: stable@vger.kernel.org Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Mao Jinlong <jinlmao@codeaurora.org> Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Link: https://lore.kernel.org/r/20201127175256.1092685-13-mathieu.poirier@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-12-26 16:02:40 +01:00
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coresight	coresight: tmc-etr: Check if page is valid before dma_map_page()	2020-12-26 16:02:40 +01:00
intel_th	intel_th: pci: Add Alder Lake CPU support	2020-10-05 12:43:54 +02:00
stm	stm class: ftrace: Use different channel accroding to CPU	2020-10-05 12:43:54 +02:00
Kconfig	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00