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| author | Ingo Molnar <mingo@elte.hu> | 2012-01-17 09:51:46 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2012-01-17 09:51:46 +0100 |
| commit | 6eadf1075c6f923fece419e38cf05bff559aefcd (patch) | |
| tree | b743ce0a3743d6f1b915b19b077a6d5bad980ea1 /drivers/mfd/twl-core.c | |
| parent | a1c611745c8c4e8996c1877d4e5d0fc95f227c38 (diff) | |
| parent | c10076c4304083af15a41f6bc5e657e781c1f9a6 (diff) | |
Merge branch 'tip/perf/urgent-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace into perf/urgent
Diffstat (limited to 'drivers/mfd/twl-core.c')
| -rw-r--r-- | drivers/mfd/twl-core.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c index bfbd66021af..61e70cfaa77 100644 --- a/drivers/mfd/twl-core.c +++ b/drivers/mfd/twl-core.c @@ -363,13 +363,13 @@ int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); return -EPERM; } - sid = twl_map[mod_no].sid; - twl = &twl_modules[sid]; - if (unlikely(!inuse)) { - pr_err("%s: client %d is not initialized\n", DRIVER_NAME, sid); + pr_err("%s: not initialized\n", DRIVER_NAME); return -EPERM; } + sid = twl_map[mod_no].sid; + twl = &twl_modules[sid]; + mutex_lock(&twl->xfer_lock); /* * [MSG1]: fill the register address data @@ -420,13 +420,13 @@ int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); return -EPERM; } - sid = twl_map[mod_no].sid; - twl = &twl_modules[sid]; - if (unlikely(!inuse)) { - pr_err("%s: client %d is not initialized\n", DRIVER_NAME, sid); + pr_err("%s: not initialized\n", DRIVER_NAME); return -EPERM; } + sid = twl_map[mod_no].sid; + twl = &twl_modules[sid]; + mutex_lock(&twl->xfer_lock); /* [MSG1] fill the register address data */ msg = &twl->xfer_msg[0]; |