diff options
| author | Pan Bian | 2016-11-29 13:56:10 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2016-11-29 17:36:43 +0100 |
| commit | 7faf44bf925531478f5862002d6291893a3b9ba3 (patch) | |
| tree | ad3fbeb2d810c45669076905b1cd4895739ce883 /drivers/usb | |
| parent | usb: return correct errno on failures (diff) | |
| download | kernel-qcow2-linux-7faf44bf925531478f5862002d6291893a3b9ba3.tar.gz kernel-qcow2-linux-7faf44bf925531478f5862002d6291893a3b9ba3.tar.xz kernel-qcow2-linux-7faf44bf925531478f5862002d6291893a3b9ba3.zip | |
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')
| -rw-r--r-- | drivers/usb/wusbcore/wa-nep.c | 1 |
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); |