Re: [PATCH] staging: fsl-mc: fix fsl_mc_is_allocatable strcmps

From	Colin Ian King <colin.king@canonical.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH] staging: fsl-mc: fix fsl_mc_is_allocatable strcmps
Date	2017-08-16 16:20 +0200
Message-ID	<uf7kS-87Z-21@gated-at.bofh.it> (permalink)
References	<uf4ZI-6ww-7@gated-at.bofh.it> <uf5j4-6Uh-23@gated-at.bofh.it> <uf6Ia-7Ci-29@gated-at.bofh.it>
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On 16/08/17 14:37, Laurentiu Tudor wrote:
> On 08/16/2017 03:06 PM, Dan Carpenter wrote:
>> On Wed, Aug 16, 2017 at 12:44:51PM +0100, Colin King wrote:
>>> From: Colin Ian King <colin.king@canonical.com>
>>>
>>> The previous fix removed the equal to zero comparisons by the strcmps and
>>> now the function always returns true. Fix this by adding in the missing
>>> logical negation operators.
>>>
>>> Detected by CoverityScan, CID#1452267 ("Constant expression result")
>>>
>>> Fixes: b93ad9a067e1 ("staging: fsl-mc: be consistent when checking strcmp() return")
> 
> Thanks Colin (and Coverity) for catching this!
> 
>> Ugh...  I did review the original patch at all.  Sorry.
> 
> As a side note, funny how i got the patch description right but not the 
> actual patch. :-)
> 
>> It's better to use "== 0" because it's idiomatic.
> 
> Agree, plus this approach would be consistent with the rest of the 
> driver (except one place in drivers/staging/fsl-mc/bus/dprc-driver.c +32)

OK, I'll send a revert sometime today as that seems the sane solution.

Colin
> 
> ---
> Best Regards, Laurentiu--
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[PATCH] staging: fsl-mc: fix fsl_mc_is_allocatable strcmps Colin King <colin.king@canonical.com> - 2017-08-16 13:50 +0200
  Re: [PATCH] staging: fsl-mc: fix fsl_mc_is_allocatable strcmps Dan Carpenter <dan.carpenter@oracle.com> - 2017-08-16 14:10 +0200
    Re: [PATCH] staging: fsl-mc: fix fsl_mc_is_allocatable strcmps Dan Carpenter <dan.carpenter@oracle.com> - 2017-08-16 14:20 +0200
    Re: [PATCH] staging: fsl-mc: fix fsl_mc_is_allocatable strcmps Laurentiu Tudor <laurentiu.tudor@nxp.com> - 2017-08-16 15:40 +0200
      Re: [PATCH] staging: fsl-mc: fix fsl_mc_is_allocatable strcmps Colin Ian King <colin.king@canonical.com> - 2017-08-16 16:20 +0200

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