Re: [PATCH v9 03/27] clk: davinci: psc: allow for dev == NULL

From: David Lechner
Date: Tue May 01 2018 - 21:50:02 EST


On 05/01/2018 09:02 AM, Sekhar Nori wrote:
On Friday 27 April 2018 05:47 AM, David Lechner wrote:
+static inline void *_devm_kzalloc(struct device *dev, size_t size, gfp_t flags)
+{
+ if (dev)
+ return devm_kzalloc(dev, size, flags);
+
+ return kzalloc(size, flags);
+}

I have the same question on the utility of this. A memory allocation
error so early on is not going to result in a bootable system anyway.
So, I wonder if its better to just BUG() in such cases. That will
actually help faster debug than returning an error back. I know the push
back on using BUG(), but clock drivers are special, and I think thats
why its seems to be used quite a bit already.


Same reply here as well. On DA850/DA830, you might not get a console,
but you will "boot" even if one of the PSC devices fails though.

WARN() is probably just as good as BUG() in this case too.