From: Suganath Prabu S suganath-prabu.subramani@broadcom.com
commit 42f687038bcc34aa919e0e4c29b04e4cda3f6a79 upstream.
Commit c1a6c5ac4278 ("scsi: mpt3sas: For NVME device, issue a protocol level reset") modified the ioctl path 'timeout' variable type to u8 from unsigned long, limiting the maximum timeout value that the driver can support to 255 seconds.
If the management application is requesting a higher value the resulting timeout will be zero. The operation times out immediately and the ioctl request fails.
Change datatype back to unsigned long.
Link: https://lore.kernel.org/r/20201125094838.4340-1-suganath-prabu.subramani@bro... Fixes: c1a6c5ac4278 ("scsi: mpt3sas: For NVME device, issue a protocol level reset") Cc: stable@vger.kernel.org #v4.18+ Signed-off-by: Suganath Prabu S suganath-prabu.subramani@broadcom.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/scsi/mpt3sas/mpt3sas_ctl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/scsi/mpt3sas/mpt3sas_ctl.c +++ b/drivers/scsi/mpt3sas/mpt3sas_ctl.c @@ -650,7 +650,7 @@ _ctl_do_mpt_command(struct MPT3SAS_ADAPT Mpi26NVMeEncapsulatedRequest_t *nvme_encap_request = NULL; struct _pcie_device *pcie_device = NULL; u16 smid; - u8 timeout; + unsigned long timeout; u8 issue_reset; u32 sz, sz_arg; void *psge;