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commitee560e7bbaupstream. The caller also calls _base_release_memory_pools() on error so it leads to a number of double frees: drivers/scsi/mpt3sas/mpt3sas_base.c:7207 mpt3sas_base_attach() warn: 'ioc->chain_dma_pool' double freed drivers/scsi/mpt3sas/mpt3sas_base.c:7207 mpt3sas_base_attach() warn: 'ioc->hpr_lookup' double freed drivers/scsi/mpt3sas/mpt3sas_base.c:7207 mpt3sas_base_attach() warn: 'ioc->internal_lookup' double freed drivers/scsi/mpt3sas/mpt3sas_base.c:7207 mpt3sas_base_attach() warn: 'ioc->pcie_sgl_dma_pool' double freed drivers/scsi/mpt3sas/mpt3sas_base.c:7207 mpt3sas_base_attach() warn: 'ioc->reply_dma_pool' double freed drivers/scsi/mpt3sas/mpt3sas_base.c:7207 mpt3sas_base_attach() warn: 'ioc->reply_free_dma_pool' double freed drivers/scsi/mpt3sas/mpt3sas_base.c:7207 mpt3sas_base_attach() warn: 'ioc->reply_post_free_array_dma_pool' double freed drivers/scsi/mpt3sas/mpt3sas_base.c:7207 mpt3sas_base_attach() warn: 'ioc->reply_post_free_dma_pool' double freed drivers/scsi/mpt3sas/mpt3sas_base.c:7207 mpt3sas_base_attach() warn: 'ioc->sense_dma_pool' double freed Fixes:74522a92bb("scsi: mpt3sas: Optimize I/O memory consumption in driver.") Link: https://lore.kernel.org/r/20191203093652.gyntgvnkw2udatyc@kili.mountain Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.