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authorLinas Vepstas <linas@austin.ibm.com>2007-03-08 17:19:11 -0500
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>2007-03-11 11:42:17 -0400
commit5daa49ef05c44ce94bed0bab0f9ba4a9e952863b (patch)
tree7af047846343ffee0d047a60c9ad81e2d5de8e76
parentbe521466feb3bb1cd89de82a2b1d080e9ebd3cb6 (diff)
[SCSI] lpfc: avoid double-free during PCI error failure
If a PCI error is detected that cannot be recovered from, there will be a double call of lpfc_pci_remove_one(), with the second call resulting in a null-pointer dereference. The first call occurs in lpfc_io_error_detected(), and the second call during pci device remove. This patch eliminates the first call; its un-needed. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Acked-by: James Smart <James.Smart@Emulex.Com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
-rw-r--r--drivers/scsi/lpfc/lpfc_init.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 9d014e5a81c4..057fd7e0e379 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -1817,10 +1817,9 @@ static pci_ers_result_t lpfc_io_error_detected(struct pci_dev *pdev,
1817 struct lpfc_sli *psli = &phba->sli; 1817 struct lpfc_sli *psli = &phba->sli;
1818 struct lpfc_sli_ring *pring; 1818 struct lpfc_sli_ring *pring;
1819 1819
1820 if (state == pci_channel_io_perm_failure) { 1820 if (state == pci_channel_io_perm_failure)
1821 lpfc_pci_remove_one(pdev);
1822 return PCI_ERS_RESULT_DISCONNECT; 1821 return PCI_ERS_RESULT_DISCONNECT;
1823 } 1822
1824 pci_disable_device(pdev); 1823 pci_disable_device(pdev);
1825 /* 1824 /*
1826 * There may be I/Os dropped by the firmware. 1825 * There may be I/Os dropped by the firmware.