From: Bart Van Assche bvanassche@acm.org
[ Upstream commit 162b805e38327135168cb0938bd37b131b481cb0 ]
This patch fixes the following kernel warning:
DMA-API: qla2xxx 0000:00:0a.0: device driver frees DMA memory with different size [device address=0x00000000c7b60000] [map size=4088 bytes] [unmap size=512 bytes] WARNING: CPU: 3 PID: 1122 at kernel/dma/debug.c:1021 check_unmap+0x4d0/0xbd0 CPU: 3 PID: 1122 Comm: rmmod Tainted: G O 5.4.0-rc1-dbg+ #1 RIP: 0010:check_unmap+0x4d0/0xbd0 Call Trace: debug_dma_free_coherent+0x123/0x173 dma_free_attrs+0x76/0xe0 qla2x00_mem_free+0x329/0xc40 [qla2xxx_scst] qla2x00_free_device+0x170/0x1c0 [qla2xxx_scst] qla2x00_remove_one+0x4f0/0x6d0 [qla2xxx_scst] pci_device_remove+0xd5/0x1f0 device_release_driver_internal+0x159/0x280 driver_detach+0x8b/0xf2 bus_remove_driver+0x9a/0x15a driver_unregister+0x51/0x70 pci_unregister_driver+0x2d/0x130 qla2x00_module_exit+0x1c/0xbc [qla2xxx_scst] __x64_sys_delete_module+0x22a/0x300 do_syscall_64+0x6f/0x2e0 entry_SYSCALL_64_after_hwframe+0x49/0xbe
Fixes: 3f006ac342c0 ("scsi: qla2xxx: Secure flash update support for ISP28XX") # v5.2-rc1~130^2~270. Cc: Michael Hernandez mhernandez@marvell.com Cc: Himanshu Madhani hmadhani@marvell.com Link: https://lore.kernel.org/r/20191106044226.5207-3-bvanassche@acm.org Reviewed-by: Martin Wilck mwilck@suse.com Acked-by: Himanshu Madhani hmadhani@marvell.com Signed-off-by: Bart Van Assche bvanassche@acm.org Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/qla2xxx/qla_os.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 23c3927751637..0bbc6a82470a5 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -4680,7 +4680,8 @@ qla2x00_mem_free(struct qla_hw_data *ha) ha->sfp_data = NULL;
if (ha->flt) - dma_free_coherent(&ha->pdev->dev, SFP_DEV_SIZE, + dma_free_coherent(&ha->pdev->dev, + sizeof(struct qla_flt_header) + FLT_REGIONS_SIZE, ha->flt, ha->flt_dma); ha->flt = NULL; ha->flt_dma = 0;