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/openbmc/linux/drivers/media/usb/em28xx/
H A Dem28xx-dvb.cdiff ad32495b1513fe8cbab717411b9cd8d2d285de30 Fri Mar 02 08:23:04 CST 2018 Mauro Carvalho Chehab <mchehab@s-opensource.com> media: em28xx-dvb: simplify DVB module probing logic

The module probing logic there is a way more complex than
it should be, and requires some special magic to avoid
stack overflows when KASAN is enabled.

Solve it by creating ancillary functions to setup the
platform data and request module.

Now, the probing functions are cleaner and easier to understand.

As a side effect, the size of the module was reduced by
about 9.7% on x86_64:

Before this patch:
text data bss dec hex filename
51090 14192 96 65378 ff62 drivers/media/usb/em28xx/em28xx-dvb.o

After this patch:
text data bss dec hex filename
44743 14192 96 59031 e697 drivers/media/usb/em28xx/em28xx-dvb.o

Tested with a PCTV 461e device.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>