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authorPan Bian <bianpan2016@163.com>2016-11-29 15:56:10 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-11-29 19:36:43 +0300
commit7faf44bf925531478f5862002d6291893a3b9ba3 (patch)
treead3fbeb2d810c45669076905b1cd4895739ce883 /drivers/usb/wusbcore
parentcd63a1c1952e169b788ee3ee2a064546ca325ea0 (diff)
downloadlinux-7faf44bf925531478f5862002d6291893a3b9ba3.tar.xz
usb: fix improper return value when kzalloc fails
The comment says function wa_nep_queue() should return 0 if ok, and <0 errno code on error. However, its implementation always returns 0, even if the call to kzalloc() fails. As a result, the return value may be inconsistent with the execution status, which may mislead the callers. This patch fixes the bug, returning -ENOMEM when the call to kzalloc() fails. Signed-off-by: Pan Bian <bianpan2016@163.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/wusbcore')
-rw-r--r--drivers/usb/wusbcore/wa-nep.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/wusbcore/wa-nep.c b/drivers/usb/wusbcore/wa-nep.c
index ed4622279c63..e3819fc182b0 100644
--- a/drivers/usb/wusbcore/wa-nep.c
+++ b/drivers/usb/wusbcore/wa-nep.c
@@ -198,6 +198,7 @@ static int wa_nep_queue(struct wahc *wa, size_t size)
if (nw == NULL) {
if (printk_ratelimit())
dev_err(dev, "No memory to queue notification\n");
+ result = -ENOMEM;
goto out;
}
INIT_WORK(&nw->work, wa_notif_dispatch);