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RE: [PATCH 2/3] staging/rdma/hfi1: check return value of kcalloc

From "Marciniszyn, Mike" <mike.marciniszyn@intel.com>
Newsgroups linux.kernel
Subject RE: [PATCH 2/3] staging/rdma/hfi1: check return value of kcalloc
Date 2015-12-14 16:30 +0100
Message-ID <qFDex-7Vd-1@gated-at.bofh.it> (permalink)
References <ds889-8u2-7@gated-at.bofh.it> <qFCLw-7vq-9@gated-at.bofh.it> <qFCLw-7vq-7@gated-at.bofh.it>
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> @@ -10129,6 +10129,9 @@ static void init_qos(struct hfi1_devdata *dd,
> u32 first_ctxt)
>  	if (num_vls * qpns_per_vl > dd->chip_rcv_contexts)
>  		goto bail;
>  	rsmmap = kcalloc(NUM_MAP_REGS, sizeof(u64), GFP_KERNEL);
> +	if (!rsmmap)
> +		goto bail;
> +

I checked out a linux-next remote at the next-20151214 tag.

The allocation method is clearly kmalloc_array() not kcalloc().

Where are you seeing the kcalloc()?

While it is tempting to allocate and zero, there is a chip rev specific difference.

Mike
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Thread

[PATCH 2/3] staging/rdma/hfi1: check return value of kcalloc Nicholas Mc Guire <hofrat@osadl.org> - 2015-12-14 16:00 +0100
  RE: [PATCH 2/3] staging/rdma/hfi1: check return value of kcalloc "Marciniszyn, Mike" <mike.marciniszyn@intel.com> - 2015-12-14 16:30 +0100
    Re: [PATCH 2/3] staging/rdma/hfi1: check return value of kcalloc Nicholas Mc Guire <der.herr@hofr.at> - 2015-12-14 18:40 +0100

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