From a4bd85203190990ad808abbd4a5dc848a950002c Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 14 Apr 2016 21:20:34 +0300 Subject: scsi_dh_alua: uninitialized variable in alua_rtpg() It's possible to use "err" without initializing it. If it happens to be a 2 which is SCSI_DH_RETRY then that could cause a bug. Bart Van Assche pointed out that we should probably re-initialize it for every iteration through the retry loop. Signed-off-by: Dan Carpenter Reviewed-by: Hannes Reinicke Signed-off-by: Martin K. Petersen Signed-off-by: James Bottomley --- drivers/scsi/device_handler/scsi_dh_alua.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/scsi') diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c index 8eaed0522aa3..a655cf29c16f 100644 --- a/drivers/scsi/device_handler/scsi_dh_alua.c +++ b/drivers/scsi/device_handler/scsi_dh_alua.c @@ -532,6 +532,7 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_port_group *pg) return SCSI_DH_DEV_TEMP_BUSY; retry: + err = 0; retval = submit_rtpg(sdev, buff, bufflen, &sense_hdr, pg->flags); if (retval) { -- cgit v1.2.3 From 2bcbc81421c511ef117cadcf0bee9c4340e68db0 Mon Sep 17 00:00:00 2001 From: Johannes Thumshirn Date: Wed, 27 Apr 2016 10:48:52 +0200 Subject: qla1280: Don't allocate 512kb of host tags The qla1280 driver sets the scsi_host_template's can_queue field to 0xfffff which results in an allocation failure when allocating the block layer tags for the driver's queues. This was introduced with the change for host wide tags in commit 64d513ac31b - "scsi: use host wide tags by default". Reduce can_queue to MAX_OUTSTANDING_COMMANDS (512) to solve the allocation error. Signed-off-by: Johannes Thumshirn Fixes: 64d513ac31b - "scsi: use host wide tags by default" Cc: stable@vger.kernel.org # v4.4 Cc: Laura Abbott Cc: Michael Reed Reviewed-by: Laurence Oberman Reviewed-by: Lee Duncan Signed-off-by: Martin K. Petersen Signed-off-by: James Bottomley --- drivers/scsi/qla1280.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/scsi') diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c index 5d0ec42a9317..634254a52301 100644 --- a/drivers/scsi/qla1280.c +++ b/drivers/scsi/qla1280.c @@ -4214,7 +4214,7 @@ static struct scsi_host_template qla1280_driver_template = { .eh_bus_reset_handler = qla1280_eh_bus_reset, .eh_host_reset_handler = qla1280_eh_adapter_reset, .bios_param = qla1280_biosparam, - .can_queue = 0xfffff, + .can_queue = MAX_OUTSTANDING_COMMANDS, .this_id = -1, .sg_tablesize = SG_ALL, .use_clustering = ENABLE_CLUSTERING, -- cgit v1.2.3