On Mon, Dec 15, 2014 at 05:03:46AM -0800, Jeremiah Mahler wrote:
>
> Or another way mentioned in K&R that produces a compile error
>
> if (NULL = x)
>
Yes. People used to write Yoda code back in the day. Don't ever do
this in the kernel.
1) It looks stupid.
2) GCC will catch most == vs = bugs as Alan pointed out.
3) There are still some that sneak through because people put double
parenthesis around everything like "if ((foo = NULL) || (...)) {",
but checkpatch.pl and Smatch will catch those.
regards,
dan carpenter
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