diff options
| author | Aristeu Rozanski <aris@redhat.com> | 2013-12-05 19:37:56 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-02-06 23:05:46 +0400 |
| commit | 09f4c0c705978deb05c74b71874b3f73e55a3b77 (patch) | |
| tree | dec8ab10c7199be6176595325abff224adbd0877 | |
| parent | 50d8f1b5c57bb29f02ab5834be334b4f7922b856 (diff) | |
| download | linux-09f4c0c705978deb05c74b71874b3f73e55a3b77.tar.xz | |
e752x_edac: Fix pci_dev usage count
commit 90ed4988b8c030d65b41b7d13140e9376dc6ec5a upstream.
In case the device 0, function 1 is not found using pci_get_device(),
pci_scan_single_device() will be used but, differently than
pci_get_device(), it allocates a pci_dev but doesn't does bump the usage
count on the pci_dev and after few module removals and loads the pci_dev
will be freed.
Signed-off-by: Aristeu Rozanski <aris@redhat.com>
Reviewed-by: mark gross <mark.gross@intel.com>
Link: http://lkml.kernel.org/r/20131205153755.GL4545@redhat.com
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/edac/e752x_edac.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/edac/e752x_edac.c b/drivers/edac/e752x_edac.c index 41223261ede9..b73beba0aa24 100644 --- a/drivers/edac/e752x_edac.c +++ b/drivers/edac/e752x_edac.c @@ -1145,9 +1145,11 @@ static int e752x_get_devs(struct pci_dev *pdev, int dev_idx, pvt->bridge_ck = pci_get_device(PCI_VENDOR_ID_INTEL, pvt->dev_info->err_dev, pvt->bridge_ck); - if (pvt->bridge_ck == NULL) + if (pvt->bridge_ck == NULL) { pvt->bridge_ck = pci_scan_single_device(pdev->bus, PCI_DEVFN(0, 1)); + pci_dev_get(pvt->bridge_ck); + } if (pvt->bridge_ck == NULL) { e752x_printk(KERN_ERR, "error reporting device not found:" |