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In function pm8001_pci_probe(), on errors that the control flow jumps to label err_out_ha_free, function pm8001_free() is called. In pm8001_free(), scsi_host_put() is called to release shost, which keeps the return value of scsi_host_alloc(). After pm8001_free() returns, kfree() is called to free shost again, resulting in a double free bug. This patch removes scsi_host_put() from pm8001_free() and explicitly calls scsi_host_put() to release Scsi_Host in need. Signed-off-by: Pan Bian <bianpan2016@163.com> Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.