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| author | Igor Pylypiv <[email protected]> | 2021-12-01 04:16:27 +0000 |
|---|---|---|
| committer | Martin K. Petersen <[email protected]> | 2021-12-03 02:40:12 +0000 |
| commit | 653926205741add87a6cf452e21950eebc6ac10b (patch) | |
| tree | 1fc8699968b8155213bf17447f34b26bc1c4f398 /drivers/usb/cdns3/cdns3-plat.c | |
| parent | scsi: ufs: ufs-pci: Add support for Intel ADL (diff) | |
| download | kernel-653926205741add87a6cf452e21950eebc6ac10b.tar.gz kernel-653926205741add87a6cf452e21950eebc6ac10b.zip | |
scsi: pm80xx: Do not call scsi_remove_host() in pm8001_alloc()
Calling scsi_remove_host() before scsi_add_host() results in a crash:
BUG: kernel NULL pointer dereference, address: 0000000000000108
RIP: 0010:device_del+0x63/0x440
Call Trace:
device_unregister+0x17/0x60
scsi_remove_host+0xee/0x2a0
pm8001_pci_probe+0x6ef/0x1b90 [pm80xx]
local_pci_probe+0x3f/0x90
We cannot call scsi_remove_host() in pm8001_alloc() because scsi_add_host()
has not been called yet at that point in time.
Function call tree:
pm8001_pci_probe()
|
`- pm8001_pci_alloc()
| |
| `- pm8001_alloc()
| |
| `- scsi_remove_host()
|
`- scsi_add_host()
Link: https://lore.kernel.org/r/[email protected]
Fixes: 05c6c029a44d ("scsi: pm80xx: Increase number of supported queues")
Reviewed-by: Vishakha Channapattan <[email protected]>
Acked-by: Jack Wang <[email protected]>
Signed-off-by: Igor Pylypiv <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
Diffstat (limited to 'drivers/usb/cdns3/cdns3-plat.c')
0 files changed, 0 insertions, 0 deletions