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mISDN: fix possible memory leak in hfcmulti_init()

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hc has been allocated in this function and missing free it before
leaving from some error handling cases.

spatch with a semantic match is used to found this problem.
(http://coccinelle.lip6.fr/)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Wei Yongjun 2012-09-03 15:31:00 +08:00 committed by David S. Miller
parent b379135c40
commit 9fef76857f
1 changed files with 2 additions and 0 deletions
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2
drivers/isdn/hardware/mISDN/hfcmulti.c
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@ -5059,6 +5059,7 @@ hfcmulti_init(struct hm_map *m, struct pci_dev *pdev,
printk(KERN_INFO
"HFC-E1 #%d has overlapping B-channels on fragment #%d\n",
E1_cnt + 1, pt);
kfree(hc);
return -EINVAL;
}
maskcheck |= hc->bmask[pt];
@ -5086,6 +5087,7 @@ hfcmulti_init(struct hm_map *m, struct pci_dev *pdev,
if ((poll >> 1) > sizeof(hc->silence_data)) {
printk(KERN_ERR "HFCMULTI error: silence_data too small, "
"please fix\n");
kfree(hc);
return -EINVAL;
}
for (i = 0; i < (poll >> 1); i++)