RE: [PATCH] mmc: core: Added support for LED trigger only when SD card is connected

[권태영]

> I'm guessing it's because of the NULL in the mmc_sd_remove() function in
> drivers/mmc/core/sd.c , but I'm not sure.
> I think it was clumsy because I was a newbie unfamiliar with mmc
> drivers. :) I'll take a closer look.

This was a hardware issue.
The CD pins on my hardware kept vibrating. :)