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| author | Aristeu Rozanski <aris@redhat.com> | 2013-12-05 10:37:56 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-02-06 11:08:12 -0800 |
| commit | 03117884dc39b1ce164da1671e010970779b0c64 (patch) | |
| tree | 6d220b7876919701311018f1e31dcbbc262ca2f9 | |
| parent | 17b6ada0567b5a9b837d37ad007c6da36dd759c0 (diff) | |
| download | linux-stable-03117884dc39b1ce164da1671e010970779b0c64.tar.gz linux-stable-03117884dc39b1ce164da1671e010970779b0c64.tar.bz2 linux-stable-03117884dc39b1ce164da1671e010970779b0c64.zip | |
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 644fec54681f..f1e9d7bd131f 100644 --- a/drivers/edac/e752x_edac.c +++ b/drivers/edac/e752x_edac.c @@ -1182,9 +1182,11 @@ 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:" |