On 02/02/2012 02:48 PM, Tim Gardner wrote:
Memory allocated by ieee80211_alloc_hw() will get orphaned
if any subsequent initializations fail.
Also don't pci_set_drvdata(pdev, NULL) until just before disabling
the PCI device. Functions called by rtl_deinit_core(hw) may eventually need
the context (when its actually implemented).
Cc: Larry Finger<Larry.Finger@xxxxxxxxxxxx>
Cc: Chaoming Li<chaoming_li@xxxxxxxxxxxxxx>
Cc: John W. Linville<linville@xxxxxxxxxxxxx>
Cc: linux-wireless@xxxxxxxxxxxxxxx
Cc: netdev@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Signed-off-by: Tim Gardner<tim.gardner@xxxxxxxxxxxxx>
---
drivers/net/wireless/rtlwifi/pci.c | 19 ++++++++++++-------
1 files changed, 12 insertions(+), 7 deletions(-)
diff --git a/drivers/net/wireless/rtlwifi/pci.c b/drivers/net/wireless/rtlwifi/pci.c
index 5cb2199..6b18063 100644
--- a/drivers/net/wireless/rtlwifi/pci.c
+++ b/drivers/net/wireless/rtlwifi/pci.c
@@ -1760,8 +1760,8 @@ int __devinit rtl_pci_probe(struct pci_dev *pdev,
if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
RT_ASSERT(false,
"Unable to obtain 32bit DMA for consistent allocations\n");
- pci_disable_device(pdev);
- return -ENOMEM;
+ err = -ENOMEM;
+ goto fail1;
I would probably added a new label after the ieee80211_free_hw() and used it
here to avoid the "if (hw)" test, but that is a matter of choice. In any case
this patch is correct.
ACKed-by: Larry Finger <Larry.Finger@xxxxxxxxxxxx>
Thanks,
Larry
}
}
@@ -1803,7 +1803,7 @@ int __devinit rtl_pci_probe(struct pci_dev *pdev,
err = pci_request_regions(pdev, KBUILD_MODNAME);
if (err) {
RT_ASSERT(false, "Can't obtain PCI resources\n");
- goto fail2;
+ goto fail1;
}
pmem_start = pci_resource_start(pdev, rtlpriv->cfg->bar_id);
@@ -1816,6 +1816,7 @@ int __devinit rtl_pci_probe(struct pci_dev *pdev,
rtlpriv->cfg->bar_id, pmem_len);
if (rtlpriv->io.pci_mem_start == 0) {
RT_ASSERT(false, "Can't map PCI mem\n");
+ err = -ENOMEM;
goto fail2;
}
@@ -1832,8 +1833,10 @@ int __devinit rtl_pci_probe(struct pci_dev *pdev,
pci_write_config_byte(pdev, 0x04, 0x07);
/* find adapter */
- if (!_rtl_pci_find_adapter(pdev, hw))
+ if (!_rtl_pci_find_adapter(pdev, hw)) {
+ err = -ENODEV;
goto fail3;
+ }
/* Init IO handler */
_rtl_pci_io_handler_init(&pdev->dev, hw);
@@ -1843,6 +1846,7 @@ int __devinit rtl_pci_probe(struct pci_dev *pdev,
if (rtlpriv->cfg->ops->init_sw_vars(hw)) {
RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "Can't init_sw_vars\n");
+ err = -ENODEV;
goto fail3;
}
@@ -1887,7 +1891,6 @@ int __devinit rtl_pci_probe(struct pci_dev *pdev,
return 0;
fail3:
- pci_set_drvdata(pdev, NULL);
rtl_deinit_core(hw);
_rtl_pci_io_handler_release(hw);
@@ -1899,10 +1902,12 @@ fail2:
complete(&rtlpriv->firmware_loading_complete);
fail1:
-
+ if (hw)
+ ieee80211_free_hw(hw);
+ pci_set_drvdata(pdev, NULL);
pci_disable_device(pdev);
- return -ENODEV;
+ return err;
}
EXPORT_SYMBOL(rtl_pci_probe);
--
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