diff options
author | Tomas Henzl <thenzl@redhat.com> | 2014-07-09 17:21:11 +0530 |
---|---|---|
committer | Christoph Hellwig <hch@lst.de> | 2014-07-25 17:17:04 -0400 |
commit | 5b4ce882d56e5356ea38ab86f6da91df4ac57842 (patch) | |
tree | f07fdde86da1f5f749af3bf0d463b3524780942d /drivers/scsi/pm8001 | |
parent | 646cdf0083e3d4a9b995f37b72c3c8a22d9307de (diff) |
pm8001: more fixes to honor return value
The driver ignores the return value in a lot of places, fix
it at least somewhere (and release the resources in such cases),
to avoid that bad things happen.
A memory leak is fixed too.
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Acked-by: Suresh Thiagarajan <Suresh.Thiagarajan@pmcs.com>
Acked-by: Jack Wang <xjtuwjp@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/scsi/pm8001')
-rw-r--r-- | drivers/scsi/pm8001/pm8001_ctl.c | 5 | ||||
-rw-r--r-- | drivers/scsi/pm8001/pm8001_init.c | 22 |
2 files changed, 24 insertions, 3 deletions
diff --git a/drivers/scsi/pm8001/pm8001_ctl.c b/drivers/scsi/pm8001/pm8001_ctl.c index a368d77b8d41..ade62c8a19fa 100644 --- a/drivers/scsi/pm8001/pm8001_ctl.c +++ b/drivers/scsi/pm8001/pm8001_ctl.c @@ -397,7 +397,10 @@ static ssize_t pm8001_ctl_bios_version_show(struct device *cdev, payload.func_specific = kzalloc(4096, GFP_KERNEL); if (!payload.func_specific) return -ENOMEM; - PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload); + if (PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload)) { + kfree(payload.func_specific); + return -ENOMEM; + } wait_for_completion(&completion); virt_addr = pm8001_ha->memoryMap.region[NVMD].virt_ptr; for (bios_index = BIOSOFFSET; bios_index < BIOS_OFFSET_LIMIT; diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c index acef7d6a5790..236fba40e540 100644 --- a/drivers/scsi/pm8001/pm8001_init.c +++ b/drivers/scsi/pm8001/pm8001_init.c @@ -622,6 +622,8 @@ static void pm8001_init_sas_add(struct pm8001_hba_info *pm8001_ha) DECLARE_COMPLETION_ONSTACK(completion); struct pm8001_ioctl_payload payload; u16 deviceid; + int rc; + pci_read_config_word(pm8001_ha->pdev, PCI_DEVICE_ID, &deviceid); pm8001_ha->nvmd_completion = &completion; @@ -639,7 +641,16 @@ static void pm8001_init_sas_add(struct pm8001_hba_info *pm8001_ha) } payload.offset = 0; payload.func_specific = kzalloc(payload.length, GFP_KERNEL); - PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload); + if (!payload.func_specific) { + PM8001_INIT_DBG(pm8001_ha, pm8001_printk("mem alloc fail\n")); + return; + } + rc = PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload); + if (rc) { + kfree(payload.func_specific); + PM8001_INIT_DBG(pm8001_ha, pm8001_printk("nvmd failed\n")); + return; + } wait_for_completion(&completion); for (i = 0, j = 0; i <= 7; i++, j++) { @@ -662,6 +673,7 @@ static void pm8001_init_sas_add(struct pm8001_hba_info *pm8001_ha) pm8001_printk("phy %d sas_addr = %016llx\n", i, pm8001_ha->phy[i].dev_sas_addr)); } + kfree(payload.func_specific); #else for (i = 0; i < pm8001_ha->chip->n_phy; i++) { pm8001_ha->phy[i].dev_sas_addr = 0x50010c600047f9d0ULL; @@ -685,6 +697,7 @@ static int pm8001_get_phy_settings_info(struct pm8001_hba_info *pm8001_ha) /*OPTION ROM FLASH read for the SPC cards */ DECLARE_COMPLETION_ONSTACK(completion); struct pm8001_ioctl_payload payload; + int rc; pm8001_ha->nvmd_completion = &completion; /* SAS ADDRESS read from flash / EEPROM */ @@ -695,7 +708,12 @@ static int pm8001_get_phy_settings_info(struct pm8001_hba_info *pm8001_ha) if (!payload.func_specific) return -ENOMEM; /* Read phy setting values from flash */ - PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload); + rc = PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload); + if (rc) { + kfree(payload.func_specific); + PM8001_INIT_DBG(pm8001_ha, pm8001_printk("nvmd failed\n")); + return -ENOMEM; + } wait_for_completion(&completion); pm8001_set_phy_profile(pm8001_ha, sizeof(u8), payload.func_specific); kfree(payload.func_specific); |