diff options
| author |   Julia Lawall <julia@diku.dk> | 2008-10-30 15:55:47 +0100 |
|---|---|---|
| committer |   Jean Delvare <khali@linux-fr.org> | 2008-10-30 15:55:47 +0100 |
| commit | da6801e38b7fba28fbdc0ceae6681d5a261a42a6 (patch) | |
| tree | 3a04ba9e00486ecc8490f86ef0ff9d2468d2eb2b | |
| parent | i2c: The i2c mailing list is moving (diff) | |
| download | linux-dev-da6801e38b7fba28fbdc0ceae6681d5a261a42a6.tar.xz linux-dev-da6801e38b7fba28fbdc0ceae6681d5a261a42a6.zip | |
i2c-s3c2410: Correct use of ! and &
In commit e6bafba5b4765a5a252f1b8d31cbf6d2459da337, a bug was fixed that
involved converting !x & y to !(x & y). The code below shows the same
pattern, and thus should perhaps be fixed in the same way. In particular,
the result of !readl(i2c->regs + S3C2410_IICCON) & S3C2410_IICCON_IRQEN is
always 0.
The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@@ expression E; constant C; @@
(
!E & !C
|
- !E & C
+ !(E & C)
)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
| -rw-r--r-- | drivers/i2c/busses/i2c-s3c2410.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c index c772e02c2803..1fac4e233133 100644 --- a/drivers/i2c/busses/i2c-s3c2410.c +++ b/drivers/i2c/busses/i2c-s3c2410.c @@ -507,7 +507,7 @@ static int s3c24xx_i2c_doxfer(struct s3c24xx_i2c *i2c, struct i2c_msg *msgs, int unsigned long timeout; int ret; - if (!readl(i2c->regs + S3C2410_IICCON) & S3C2410_IICCON_IRQEN) + if (!(readl(i2c->regs + S3C2410_IICCON) & S3C2410_IICCON_IRQEN)) return -EIO; ret = s3c24xx_i2c_set_master(i2c); |