Since kzalloc can be failed in memory pressure,
NULL dereference might be happened.
Signed-off-by: Insu Yun <wuni...@gmail.com>
---
drivers/isdn/hardware/mISDN/hfcsusb.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/isdn/hardware/mISDN/hfcsusb.c
b/drivers/isdn/hardware/mISDN/hfcsusb.c
index 114f3bc..15164e9 100644
--- a/drivers/isdn/hardware/mISDN/hfcsusb.c
+++ b/drivers/isdn/hardware/mISDN/hfcsusb.c
@@ -264,6 +264,9 @@ hfcsusb_ph_info(struct hfcsusb *hw)
phi = kzalloc(sizeof(struct ph_info) +
dch->dev.nrbchan * sizeof(struct ph_info_ch), GFP_ATOMIC);
+ if (!phi)
+ return;
+
phi->dch.ch.protocol = hw->protocol;
phi->dch.ch.Flags = dch->Flags;
phi->dch.state = dch->state;
--
1.9.1
--
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