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| author | Roel Kluin <roel.kluin@gmail.com> | 2009-05-05 06:39:24 (GMT) |
|---|---|---|
| committer | Jean Delvare <khali@linux-fr.org> | 2009-05-05 06:39:24 (GMT) |
| commit | 4ccc28f725bc2b7b0a3bc27e9c15f4eaf63fb812 (patch) | |
| tree | f1a3a3424713340aabb5722fc1accad149fc5052 /drivers/i2c/busses/i2c-i801.c | |
| parent | b4348f32dae3cb6eb4bc21c7ed8f76c0b11e9d6a (diff) | |
| download | linux-fsl-qoriq-4ccc28f725bc2b7b0a3bc27e9c15f4eaf63fb812.tar.xz | |
i2c: Timeouts off by 1
with while (timeout++ < MAX_TIMEOUT); timeout reaches MAX_TIMEOUT + 1
after the loop, so the tests below are off by one.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'drivers/i2c/busses/i2c-i801.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-i801.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c index 1041184..9d2c5ad 100644 --- a/drivers/i2c/busses/i2c-i801.c +++ b/drivers/i2c/busses/i2c-i801.c @@ -237,7 +237,7 @@ static int i801_transaction(int xact) status = inb_p(SMBHSTSTS); } while ((status & SMBHSTSTS_HOST_BUSY) && (timeout++ < MAX_TIMEOUT)); - result = i801_check_post(status, timeout >= MAX_TIMEOUT); + result = i801_check_post(status, timeout > MAX_TIMEOUT); if (result < 0) return result; @@ -257,9 +257,9 @@ static void i801_wait_hwpec(void) } while ((!(status & SMBHSTSTS_INTR)) && (timeout++ < MAX_TIMEOUT)); - if (timeout >= MAX_TIMEOUT) { + if (timeout > MAX_TIMEOUT) dev_dbg(&I801_dev->dev, "PEC Timeout!\n"); - } + outb_p(status, SMBHSTSTS); } @@ -344,7 +344,7 @@ static int i801_block_transaction_byte_by_byte(union i2c_smbus_data *data, while ((!(status & SMBHSTSTS_BYTE_DONE)) && (timeout++ < MAX_TIMEOUT)); - result = i801_check_post(status, timeout >= MAX_TIMEOUT); + result = i801_check_post(status, timeout > MAX_TIMEOUT); if (result < 0) return result; |