Ira Weiny c65efe3685 cxl/cdat: Free correct buffer on checksum error ... The new 6.7-rc1 kernel now checks the checksum on CDAT data. While using a branch of Fan's DCD qemu work (and specifying DCD devices), the following splat was observed. WARNING: CPU: 1 PID: 1384 at drivers/base/devres.c:1064 devm_kfree+0x4f/0x60 ... RIP: 0010:devm_kfree+0x4f/0x60 ... ? devm_kfree+0x4f/0x60 read_cdat_data+0x1a0/0x2a0 [cxl_core] cxl_port_probe+0xdf/0x200 [cxl_port] ... The issue in qemu is still unknown but the spat is a straight forward bug in the CDAT checksum processing code. Use a CDAT buffer variable to ensure the devm_free() works correctly on error. Fixes: 670e4e88f3 ("cxl: Add checksum verification to CDAT from CXL") Signed-off-by: Ira Weiny <ira.weiny@intel.com> Reviewed-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Fan Ni <fan.ni@samsung.com> Reviewed-by: Robert Richter <rrichter@amd.com> Link: http://lore.kernel.org/r/20231116-fix-cdat-devm-free-v1-1-b148b40707d7@intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com>		2023-12-08 16:14:28 -08:00
..
core	cxl/cdat: Free correct buffer on checksum error	2023-12-08 16:14:28 -08:00
acpi.c	cxl: Export QTG ids from CFMWS to sysfs as qos_class attribute	2023-10-27 20:48:02 -07:00
cxl.h	Merge branch 'for-6.7/cxl-commited' into cxl/next	2023-10-31 11:00:08 -07:00
cxlmem.h	Merge branch 'for-6.7/cxl-rch-eh' into cxl/next	2023-10-31 10:59:00 -07:00
cxlpci.h	cxl/pci: Find and register CXL PMU devices	2023-05-30 11:20:35 -07:00
Kconfig	cxl: fix CONFIG_FW_LOADER dependency	2023-07-14 14:32:22 -06:00
Makefile	cxl/pmem: Introduce nvdimm_security_ops with ->get_flags() operation	2022-11-30 16:30:47 -08:00
mem.c	cxl/pci: Add RCH downstream port AER register discovery	2023-10-27 20:13:38 -07:00
pci.c	Merge branch 'for-6.7/cxl' into cxl/next	2023-10-31 10:59:44 -07:00
pmem.c	cxl/mbox: Move mailbox related driver state to its own data structure	2023-06-25 14:31:08 -07:00
pmu.h	cxl/pci: Find and register CXL PMU devices	2023-05-30 11:20:35 -07:00
port.c	cxl: Add support for reading CXL switch CDAT table	2023-10-27 20:48:02 -07:00
security.c	Merge branch 'for-6.5/cxl-type-2' into for-6.5/cxl	2023-06-25 17:16:51 -07:00