staging: bcm: fix possible memory leak in bcm_char_ioctl()
psFwInfo has been allocated in this function and should be freed before leaving from the 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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -820,6 +820,7 @@ cntrlEnd:
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if (copy_from_user(psFwInfo, IoBuffer.InputBuffer, IoBuffer.InputLength)) {
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up(&Adapter->fw_download_sema);
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kfree(psFwInfo);
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return -EFAULT;
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}
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@ -829,6 +830,7 @@ cntrlEnd:
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Something else is wrong %lu\n",
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psFwInfo->u32FirmwareLength);
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up(&Adapter->fw_download_sema);
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kfree(psFwInfo);
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Status = -EINVAL;
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return Status;
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}
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