when probe a pci device, first we enable it, and disable it when
some error happened in the following process, because the power
state of the device is set to D0, and if MSI is disabled,
we will allocate irq and register gsi for this device in the enable process.
In function mpt_mapresources(MPT_ADAPTER *ioc), it forgot disable the
pci device when error happened, the irq and gsi will never be released.
this patch will fix it.
Signed-off-by: Hanjun Guo <[email protected]>
Signed-off-by: Jiang Liu <[email protected]>
---
drivers/message/fusion/mptbase.c | 18 +++++++++++-------
1 files changed, 11 insertions(+), 7 deletions(-)
diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
index d99db56..fb69baa 100644
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@@ -1666,7 +1666,7 @@ mpt_mapresources(MPT_ADAPTER *ioc)
if (pci_request_selected_regions(pdev, ioc->bars, "mpt")) {
printk(MYIOC_s_ERR_FMT "pci_request_selected_regions() with "
"MEM failed\n", ioc->name);
- return r;
+ goto out_pci_disable_device;
}
if (sizeof(dma_addr_t) > 4) {
@@ -1690,8 +1690,7 @@ mpt_mapresources(MPT_ADAPTER *ioc)
} else {
printk(MYIOC_s_WARN_FMT "no suitable DMA mask for %s\n",
ioc->name, pci_name(pdev));
- pci_release_selected_regions(pdev, ioc->bars);
- return r;
+ goto out_pci_release_region;
}
} else {
if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))
@@ -1704,8 +1703,7 @@ mpt_mapresources(MPT_ADAPTER *ioc)
} else {
printk(MYIOC_s_WARN_FMT "no suitable DMA mask for %s\n",
ioc->name, pci_name(pdev));
- pci_release_selected_regions(pdev, ioc->bars);
- return r;
+ goto out_pci_release_region;
}
}
@@ -1735,8 +1733,8 @@ mpt_mapresources(MPT_ADAPTER *ioc)
if (mem == NULL) {
printk(MYIOC_s_ERR_FMT ": ERROR - Unable to map adapter"
" memory!\n", ioc->name);
- pci_release_selected_regions(pdev, ioc->bars);
- return -EINVAL;
+ r = -EINVAL;
+ goto out_pci_release_region;
}
ioc->memmap = mem;
dinitprintk(ioc, printk(MYIOC_s_INFO_FMT "mem = %p, mem_phys = %llx\n",
@@ -1750,6 +1748,12 @@ mpt_mapresources(MPT_ADAPTER *ioc)
ioc->pio_chip = (SYSIF_REGS __iomem *)port;
return 0;
+
+out_pci_release_region:
+ pci_release_selected_regions(pdev, ioc->bars);
+out_pci_disable_device:
+ pci_disable_device(pdev);
+ return r;
}
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
--
1.7.6.1
This patch seem to be fine. Please consider this patch as Acked-by: "Nandigama, Nagalakshmi" <[email protected]>
Regards,
Nagalakshmi
-----Original Message-----
From: Hanjun Guo [mailto:[email protected]]
Sent: Saturday, August 11, 2012 8:29 AM
To: Moore, Eric
Cc: Yinghai Lu; Yijing Wang; [email protected]; DL-MPT Fusion Linux; [email protected]; Hanjun Guo; Jiang Liu
Subject: [RFC PATCH][RESEND] Fusion MPT: disable pci device when mpt map resoures failed
when probe a pci device, first we enable it, and disable it when
some error happened in the following process, because the power
state of the device is set to D0, and if MSI is disabled,
we will allocate irq and register gsi for this device in the enable process.
In function mpt_mapresources(MPT_ADAPTER *ioc), it forgot disable the
pci device when error happened, the irq and gsi will never be released.
this patch will fix it.
Signed-off-by: Hanjun Guo <[email protected]>
Signed-off-by: Jiang Liu <[email protected]>
---
drivers/message/fusion/mptbase.c | 18 +++++++++++-------
1 files changed, 11 insertions(+), 7 deletions(-)
diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
index d99db56..fb69baa 100644
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@@ -1666,7 +1666,7 @@ mpt_mapresources(MPT_ADAPTER *ioc)
if (pci_request_selected_regions(pdev, ioc->bars, "mpt")) {
printk(MYIOC_s_ERR_FMT "pci_request_selected_regions() with "
"MEM failed\n", ioc->name);
- return r;
+ goto out_pci_disable_device;
}
if (sizeof(dma_addr_t) > 4) {
@@ -1690,8 +1690,7 @@ mpt_mapresources(MPT_ADAPTER *ioc)
} else {
printk(MYIOC_s_WARN_FMT "no suitable DMA mask for %s\n",
ioc->name, pci_name(pdev));
- pci_release_selected_regions(pdev, ioc->bars);
- return r;
+ goto out_pci_release_region;
}
} else {
if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))
@@ -1704,8 +1703,7 @@ mpt_mapresources(MPT_ADAPTER *ioc)
} else {
printk(MYIOC_s_WARN_FMT "no suitable DMA mask for %s\n",
ioc->name, pci_name(pdev));
- pci_release_selected_regions(pdev, ioc->bars);
- return r;
+ goto out_pci_release_region;
}
}
@@ -1735,8 +1733,8 @@ mpt_mapresources(MPT_ADAPTER *ioc)
if (mem == NULL) {
printk(MYIOC_s_ERR_FMT ": ERROR - Unable to map adapter"
" memory!\n", ioc->name);
- pci_release_selected_regions(pdev, ioc->bars);
- return -EINVAL;
+ r = -EINVAL;
+ goto out_pci_release_region;
}
ioc->memmap = mem;
dinitprintk(ioc, printk(MYIOC_s_INFO_FMT "mem = %p, mem_phys = %llx\n",
@@ -1750,6 +1748,12 @@ mpt_mapresources(MPT_ADAPTER *ioc)
ioc->pio_chip = (SYSIF_REGS __iomem *)port;
return 0;
+
+out_pci_release_region:
+ pci_release_selected_regions(pdev, ioc->bars);
+out_pci_disable_device:
+ pci_disable_device(pdev);
+ return r;
}
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
--
1.7.6.1