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| author | Colin Ian King <colin.king@canonical.com> | 2017-04-24 14:36:02 +0100 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2017-06-22 23:59:01 +0200 |
| commit | e1038535106e73e48204ec3bfe5a428fe6cb35cb (patch) | |
| tree | 946b3da460748f407be8bfd4592a62f36a3d6513 /drivers/nfc | |
| parent | 1e4179bc71aeaba81bcf42f5f23a9a3bb1219814 (diff) | |
| download | linux-e1038535106e73e48204ec3bfe5a428fe6cb35cb.tar.gz linux-e1038535106e73e48204ec3bfe5a428fe6cb35cb.tar.bz2 linux-e1038535106e73e48204ec3bfe5a428fe6cb35cb.zip | |
NFC: trf7970a: fix check of clock frequencies, use && instead of ||
The "or" condition (clk_freq != TRF7970A_27MHZ_CLOCK_FREQUENCY) ||
(clk_freq != TRF7970A_13MHZ_CLOCK_FREQUE) will always be true because
clk_freq cannot be equal to two different values at the same time. Use
the && operator instead of || to fix this.
Detected by CoverityScan, CID#1430468 ("Constant expression result")
Fixes: 837eb4d21ecde7 ("NFC: trf7970a: add device tree option for 27MHz clock")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Geoff Lansberry <geoff@kuvee.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/nfc')
| -rw-r--r-- | drivers/nfc/trf7970a.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/nfc/trf7970a.c b/drivers/nfc/trf7970a.c index 28b942ea15fb..914463a0e7b3 100644 --- a/drivers/nfc/trf7970a.c +++ b/drivers/nfc/trf7970a.c @@ -2059,7 +2059,7 @@ static int trf7970a_probe(struct spi_device *spi) } of_property_read_u32(np, "clock-frequency", &clk_freq); - if ((clk_freq != TRF7970A_27MHZ_CLOCK_FREQUENCY) || + if ((clk_freq != TRF7970A_27MHZ_CLOCK_FREQUENCY) && (clk_freq != TRF7970A_13MHZ_CLOCK_FREQUENCY)) { dev_err(trf->dev, "clock-frequency (%u Hz) unsupported\n", clk_freq); |