check return value of kzalloc and return error if it fails. Signed-off-by: Gujulan Elango Hari Prasath <hgujulan@xxxxxxxxxxx> --- drivers/staging/dgnc/dgnc_tty.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c index ce4187f..2397c66 100644 --- a/drivers/staging/dgnc/dgnc_tty.c +++ b/drivers/staging/dgnc/dgnc_tty.c @@ -316,6 +316,8 @@ int dgnc_tty_init(struct dgnc_board *brd) * interrupt context, and there are no locks held. */ brd->channels[i] = kzalloc(sizeof(*brd->channels[i]), GFP_KERNEL); + if (!brd->channels[i]) + return -ENOMEM; } } @@ -1126,10 +1128,16 @@ static int dgnc_tty_open(struct tty_struct *tty, struct file *file) if (!ch->ch_rqueue) ch->ch_rqueue = kzalloc(RQUEUESIZE, GFP_KERNEL); + if (!ch->ch_rqueue) + return -ENOMEM; if (!ch->ch_equeue) ch->ch_equeue = kzalloc(EQUEUESIZE, GFP_KERNEL); + if (!ch->ch_equeue) + return -ENOMEM; if (!ch->ch_wqueue) ch->ch_wqueue = kzalloc(WQUEUESIZE, GFP_KERNEL); + if (!ch->ch_wqueue) + return -ENOMEM; spin_lock_irqsave(&ch->ch_lock, flags); -- 1.9.1 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
