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| author | Meelis Roos <mroos@linux.ee> | 2007-07-31 00:39:41 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-31 15:39:44 -0700 |
| commit | db7526f925b79293dc3b361a70db7f340870a298 (patch) | |
| tree | a97f7794e713b654c2a9941429a1e1173e3e0f13 /drivers/message/i2o | |
| parent | ad4a5bb885f1985732426f108d2fe36517dd1939 (diff) | |
| download | linux-3.10-db7526f925b79293dc3b361a70db7f340870a298.tar.gz linux-3.10-db7526f925b79293dc3b361a70db7f340870a298.tar.bz2 linux-3.10-db7526f925b79293dc3b361a70db7f340870a298.zip | |
fix integer overflow warning in i2o_block
drivers/message/i2o/i2o_block.c: In function 'i2o_block_transfer':
drivers/message/i2o/i2o_block.c:837: warning: integer overflow in expression
msg->u.head[1] = cpu_to_le32(I2O_CMD_PRIVATE << 24 | HOST_TID << 12 | tid);
and I2O_CMD_PRIVATE is defined as 0xFF. This gets "0xFF0100 | tid" and fits
into 32-bit unsigned but not into 32-bit signed integer properly. Target
value is defined as u32 so the claculation does not fit during computation.
Change local variable tid to u32 so the whole expression is of u32 type and
fits well into u32 result.
Signed-off-by: Meelis Roos <mroos@linux.ee>
Cc: "Salyzyn, Mark" <mark_salyzyn@adaptec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/message/i2o')
| -rw-r--r-- | drivers/message/i2o/i2o_block.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/message/i2o/i2o_block.c b/drivers/message/i2o/i2o_block.c index 5e1c99f83ab..50b2c733441 100644 --- a/drivers/message/i2o/i2o_block.c +++ b/drivers/message/i2o/i2o_block.c @@ -744,7 +744,7 @@ static int i2o_block_transfer(struct request *req) { struct i2o_block_device *dev = req->rq_disk->private_data; struct i2o_controller *c; - int tid = dev->i2o_dev->lct_data.tid; + u32 tid = dev->i2o_dev->lct_data.tid; struct i2o_message *msg; u32 *mptr; struct i2o_block_request *ireq = req->special; |