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Re: [PATCH] staging: speakup: replace simple_strtoul() with kstrtoint()

From Dan Carpenter <dan.carpenter@oracle.com>
Newsgroups linux.kernel
Subject Re: [PATCH] staging: speakup: replace simple_strtoul() with kstrtoint()
Date 2015-06-25 10:30 +0200
Message-ID <pFaHN-3gT-27@gated-at.bofh.it> (permalink)
References (1 earlier) <pEFkC-8ie-11@gated-at.bofh.it> <pEFDY-sP-7@gated-at.bofh.it> <pELq1-nh-1@gated-at.bofh.it> <pEPWF-6TW-3@gated-at.bofh.it> <pEWYa-8q8-15@gated-at.bofh.it>
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Probably once you start writing a patch you will figure it out.  :)

keymap_store() is a crap function.  We have the cp1 pointer that points
to the end of two back to back 3 char arrays.  The name cp1 is because
it is the second copy of the cp buffer which is a copy of the buf
buffer.  Since it is a backwards array we use cp1[-3] where normally we
would say array[0] and cp1[-1] to mean the last element in the array.

We need around 6 characters in cp1, but we are only garaunteed to have
2.  There is no checking.

Lots of checkpatch.pl warnings.

Just focus on cleaning up keymap_store() and hopefully at the end you
can just delete spk_s2uchar().

regards,
dan carpenter

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Re: [PATCH] staging: speakup: replace simple_strtoul() with  kstrtoint() Luis de Bethencourt <luis@debethencourt.com> - 2015-06-24 01:20 +0200
  Re: [PATCH] staging: speakup: replace simple_strtoul() with  kstrtoint() Dan Carpenter <dan.carpenter@oracle.com> - 2015-06-25 10:30 +0200

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