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Groups > linux.kernel > #1299147
| From | Insu Yun <wuninsu@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH] mISDN: correctly handling failed allocation |
| Date | 2015-12-29 22:40 +0100 |
| Message-ID | <qLa9P-5VQ-11@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
Since kzalloc can be failed in memory pressure, NULL dereference might be happened. Signed-off-by: Insu Yun <wuninsu@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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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[PATCH] mISDN: correctly handling failed allocation Insu Yun <wuninsu@gmail.com> - 2015-12-29 22:40 +0100
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