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| author | Daeseok Youn <daeseok.youn@gmail.com> | 2016-04-05 09:29:43 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-04-30 00:46:00 (GMT) |
| commit | 16f10a825da5b9361ef8e8da76720c37f0116da4 (patch) | |
| tree | ba2672ec6d79d0f58a2f99884e336c6be6732f71 /drivers/staging/dgnc/dgnc_tty.c | |
| parent | 6b3752d8ce67dc62150db9d153e72c7a98db4007 (diff) | |
| download | linux-16f10a825da5b9361ef8e8da76720c37f0116da4.tar.xz | |
staging: dgnc: return -ENOMEM when kzalloc failed
The kzalloc can be failed when memory is not enough
to allocate. When kzalloc failed, it need to return
error code with ENOMEM
Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/dgnc/dgnc_tty.c')
| -rw-r--r-- | drivers/staging/dgnc/dgnc_tty.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c index 5832190..7f73a41 100644 --- a/drivers/staging/dgnc/dgnc_tty.c +++ b/drivers/staging/dgnc/dgnc_tty.c @@ -1106,6 +1106,14 @@ static int dgnc_tty_open(struct tty_struct *tty, struct file *file) if (!ch->ch_wqueue) ch->ch_wqueue = kzalloc(WQUEUESIZE, GFP_KERNEL); + if (!ch->ch_rqueue || !ch->ch_equeue || !ch->ch_wqueue) { + kfree(ch->ch_rqueue); + kfree(ch->ch_equeue); + kfree(ch->ch_wqueue); + + return -ENOMEM; + } + spin_lock_irqsave(&ch->ch_lock, flags); ch->ch_flags &= ~(CH_OPENING); |