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| author | Jean Delvare <khali@linux-fr.org> | 2010-08-11 18:21:01 +0200 |
|---|---|---|
| committer | Jean Delvare <khali@linux-fr.org> | 2010-08-11 18:21:01 +0200 |
| commit | dafc50d141c27959dbd3a1cfe9857a86d23402a7 (patch) | |
| tree | 565aea94308f40813540f06d7bbcb322ae92eeed /include/linux | |
| parent | 8031d79baedabd44590d047d97a310eb0e0e4e0c (diff) | |
| download | linux-dafc50d141c27959dbd3a1cfe9857a86d23402a7.tar.gz linux-dafc50d141c27959dbd3a1cfe9857a86d23402a7.tar.bz2 linux-dafc50d141c27959dbd3a1cfe9857a86d23402a7.zip | |
i2c: Use a separate mutex for userspace client lists
Moving userspace-instantiated clients to separate lists wasn't nearly
enough to avoid deadlocks in multiplexed bus cases. We also want to
have a dedicated mutex to protect each list.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Michael Lawnick <ml.lawnick@gmx.de>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/i2c.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/i2c.h b/include/linux/i2c.h index 5bf0f4beea31..798bad8741e4 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -368,6 +368,7 @@ struct i2c_adapter { char name[48]; struct completion dev_released; + struct mutex userspace_clients_lock; struct list_head userspace_clients; }; #define to_i2c_adapter(d) container_of(d, struct i2c_adapter, dev) |