pcmcia: pcmcia_dev_present bugfix

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pcmcia_dev_present is in and by itself buggy. Add a note specifying
why it is broken, and replace the broken locking -- taking a mutex
is a bad idea in IRQ context, from which this function is rarely
called -- by an atomic_t.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

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This commit is contained in:

Dominik Brodowski 2010-04-20 14:49:01 +02:00

parent 05ce7bfe54

commit 04de081617

3 changed files with 20 additions and 42 deletions

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47

drivers/pcmcia/ds.c

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7

include/pcmcia/ds.h

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8

include/pcmcia/ss.h

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