From mboxrd@z Thu Jan 1 00:00:00 1970 From: SF Markus Elfring Date: Fri, 21 Nov 2014 14:23:51 +0000 Subject: [PATCH 1/1] USB: PCI-quirks: Deletion of unnecessary checks before the function call "pci_dev_put" Message-Id: <546F4AF7.1030207@users.sourceforge.net> List-Id: References: <5307CAA2.8060406@users.sourceforge.net> <530A086E.8010901@users.sourceforge.net> <530A72AA.3000601@users.sourceforge.net> <530B5FB6.6010207@users.sourceforge.net> <530C5E18.1020800@users.sourceforge.net> <530CD2C4.4050903@users.sourceforge.net> <530CF8FF.8080600@users.sourceforge.net> <530DD06F.4090703@users.sourceforge.net> <5317A59D.4@users.sourceforge.net> In-Reply-To: <5317A59D.4@users.sourceforge.net> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Greg Kroah-Hartman , Mathias Nyman , linux-usb@vger.kernel.org Cc: LKML , kernel-janitors@vger.kernel.org, Julia Lawall From: Markus Elfring Date: Fri, 21 Nov 2014 15:20:12 +0100 The pci_dev_put() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring --- drivers/usb/host/pci-quirks.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c index 2f3aceb..dd483c1 100644 --- a/drivers/usb/host/pci-quirks.c +++ b/drivers/usb/host/pci-quirks.c @@ -233,10 +233,8 @@ commit: spin_unlock_irqrestore(&amd_lock, flags); - if (info.nb_dev) - pci_dev_put(info.nb_dev); - if (info.smbus_dev) - pci_dev_put(info.smbus_dev); + pci_dev_put(info.nb_dev); + pci_dev_put(info.smbus_dev); } else { /* no race - commit the result */ @@ -447,10 +445,8 @@ void usb_amd_dev_put(void) spin_unlock_irqrestore(&amd_lock, flags); - if (nb) - pci_dev_put(nb); - if (smbus) - pci_dev_put(smbus); + pci_dev_put(nb); + pci_dev_put(smbus); } EXPORT_SYMBOL_GPL(usb_amd_dev_put); -- 2.1.3