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| author |   dan.carpenter@oracle.com <dan.carpenter@oracle.com> | 2013-06-09 16:07:28 +0300 |
|---|---|---|
| committer |   Mark Brown <broonie@linaro.org> | 2013-06-10 10:28:04 +0100 |
| commit | e33d085d11e54bc9fb07b2555cd104d8e7b3089b (patch) | |
| tree | 4ccf035adb8aacc450aabbbe1fc07a197e3198dd /drivers/spi/spi-xilinx.c | |
| parent | spi: spi-xilinx: Remove ISR race condition (diff) | |
| download | linux-dev-e33d085d11e54bc9fb07b2555cd104d8e7b3089b.tar.xz linux-dev-e33d085d11e54bc9fb07b2555cd104d8e7b3089b.zip | |
spi: spi-xilinx: cleanup a check in xilinx_spi_txrx_bufs()
'!' has higher precedence than comparisons so the original condition
is equivalent to "if (xspi->remaining_bytes == 0)". This makes the
static checkers complain.
xspi->remaining_bytes is signed and from looking at the code
briefly, I think it might be able to go negative. I suspect that
going negative may cause a bug, but I don't have the hardware and
can't test.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'drivers/spi/spi-xilinx.c')
| -rw-r--r-- | drivers/spi/spi-xilinx.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/spi/spi-xilinx.c b/drivers/spi/spi-xilinx.c index 34d18dcfa0db..109a535b639c 100644 --- a/drivers/spi/spi-xilinx.c +++ b/drivers/spi/spi-xilinx.c @@ -315,7 +315,7 @@ static int xilinx_spi_txrx_bufs(struct spi_device *spi, struct spi_transfer *t) } /* See if there is more data to send */ - if (!xspi->remaining_bytes > 0) + if (xspi->remaining_bytes <= 0) break; } |