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| author |   Jiri Slaby <jslaby@suse.cz> | 2010-02-02 14:44:50 -0800 |
|---|---|---|
| committer |   Richard Purdie <rpurdie@linux.intel.com> | 2010-03-16 19:47:54 +0000 |
| commit | a4ebb780e194e8751dc22deeabcddd3fdc8f18f0 (patch) | |
| tree | 490cac976b02f53ac5596d66ba6adaffa2e698ba | |
| parent | backlight: l4f00242t03: Fix module licence absence. (diff) | |
| download | linux-dev-a4ebb780e194e8751dc22deeabcddd3fdc8f18f0.tar.xz linux-dev-a4ebb780e194e8751dc22deeabcddd3fdc8f18f0.zip | |
video: backlight/progear, fix pci device refcounting
Stanse found an ommitted pci_dev_puts on error path in progearbl_probe.
pmu_dev and sb_dev are gotten, but never put when
backlight_device_register fails.
So unify fail paths and put the devs when the failure occurs.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
| -rw-r--r-- | drivers/video/backlight/progear_bl.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/video/backlight/progear_bl.c b/drivers/video/backlight/progear_bl.c index 075786e05034..2ec16deb2397 100644 --- a/drivers/video/backlight/progear_bl.c +++ b/drivers/video/backlight/progear_bl.c @@ -63,6 +63,7 @@ static int progearbl_probe(struct platform_device *pdev) { u8 temp; struct backlight_device *progear_backlight_device; + int ret; pmu_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, NULL); if (!pmu_dev) { @@ -73,8 +74,8 @@ static int progearbl_probe(struct platform_device *pdev) sb_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL); if (!sb_dev) { printk("ALI 1533 SB not found.\n"); - pci_dev_put(pmu_dev); - return -ENODEV; + ret = -ENODEV; + goto put_pmu; } /* Set SB_MPS1 to enable brightness control. */ @@ -84,8 +85,10 @@ static int progearbl_probe(struct platform_device *pdev) progear_backlight_device = backlight_device_register("progear-bl", &pdev->dev, NULL, &progearbl_ops); - if (IS_ERR(progear_backlight_device)) - return PTR_ERR(progear_backlight_device); + if (IS_ERR(progear_backlight_device)) { + ret = PTR_ERR(progear_backlight_device); + goto put_sb; + } platform_set_drvdata(pdev, progear_backlight_device); @@ -95,6 +98,11 @@ static int progearbl_probe(struct platform_device *pdev) progearbl_set_intensity(progear_backlight_device); return 0; +put_sb: + pci_dev_put(sb_dev); +put_pmu: + pci_dev_put(pmu_dev); + return ret; } static int progearbl_remove(struct platform_device *pdev) |