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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2019-06-15 20:41:35 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-06-17 15:50:52 +0300 |
| commit | ebc37af5e0a134355ea2b62ed4141458bdbd5389 (patch) | |
| tree | c75018efc02c6dfced5f6a20f7d3bb97cc909746 | |
| parent | 36f34737ff48f66c8a19b8788311e4b40d4adf80 (diff) | |
| download | linux-ebc37af5e0a134355ea2b62ed4141458bdbd5389.tar.xz | |
spi: No need to assign dummy value in spi_unregister_controller()
The device_for_each_child() doesn't require the returned value to be checked.
Thus, drop the dummy variable completely and have no warning anymore:
drivers/spi/spi.c: In function ‘spi_unregister_controller’:
drivers/spi/spi.c:2480:6: warning: variable ‘dummy’ set but not used [-Wunused-but-set-variable]
int dummy;
^~~~~
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | drivers/spi/spi.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 498f9b7419a4..e71881afe475 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -2559,7 +2559,6 @@ void spi_unregister_controller(struct spi_controller *ctlr) { struct spi_controller *found; int id = ctlr->bus_num; - int dummy; /* First make sure that this controller was ever added */ mutex_lock(&board_lock); @@ -2573,7 +2572,7 @@ void spi_unregister_controller(struct spi_controller *ctlr) list_del(&ctlr->list); mutex_unlock(&board_lock); - dummy = device_for_each_child(&ctlr->dev, NULL, __unregister); + device_for_each_child(&ctlr->dev, NULL, __unregister); device_unregister(&ctlr->dev); /* free bus id */ mutex_lock(&board_lock); |