diff options
| author |   Dominik Brodowski <linux@dominikbrodowski.net> | 2010-04-20 14:49:01 +0200 |
|---|---|---|
| committer | Dominik Brodowski <linux@dominikbrodowski.net> | 2010-04-21 08:09:17 +0200 |
| commit | 04de0816173c86948b75da93a6344a0a02bbec4d (patch) | |
| tree | ed4b274c1ce5da03a9c37f5858a331529e5b150f /include/pcmcia/ds.h | |
| parent | Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6 (diff) | |
| download | linux-dev-04de0816173c86948b75da93a6344a0a02bbec4d.tar.xz linux-dev-04de0816173c86948b75da93a6344a0a02bbec4d.zip | |
pcmcia: pcmcia_dev_present bugfix
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>
Diffstat (limited to '')
| -rw-r--r-- | include/pcmcia/ds.h | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/include/pcmcia/ds.h b/include/pcmcia/ds.h index d57847f2f6c1..aab3c13dc310 100644 --- a/include/pcmcia/ds.h +++ b/include/pcmcia/ds.h @@ -26,6 +26,7 @@ #ifdef __KERNEL__ #include <linux/device.h> #include <pcmcia/ss.h> +#include <asm/atomic.h> /* * PCMCIA device drivers (16-bit cards only; 32-bit cards require CardBus @@ -94,10 +95,8 @@ struct pcmcia_device { config_req_t conf; window_handle_t win; - /* Is the device suspended, or in the process of - * being removed? */ + /* Is the device suspended? */ u16 suspended:1; - u16 _removed:1; /* Flags whether io, irq, win configurations were * requested, and whether the configuration is "locked" */ @@ -115,7 +114,7 @@ struct pcmcia_device { u16 has_card_id:1; u16 has_func_id:1; - u16 reserved:3; + u16 reserved:4; u8 func_id; u16 manf_id; |