diff options
| author | William Breathitt Gray <william.gray@linaro.org> | 2023-08-10 18:00:44 -0400 |
|---|---|---|
| committer | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2023-08-11 21:31:59 +0200 |
| commit | 33f83d13ded164cd49ce2a3bd2770115abc64e6f (patch) | |
| tree | 2a70eba222ab1d9422d96fc2958e67b380ef5ac4 | |
| parent | 5a78d5db9c90c9dc84212f40a5f2687b7cafc8ec (diff) | |
| download | linux-33f83d13ded164cd49ce2a3bd2770115abc64e6f.tar.gz | |
gpio: ws16c48: Fix off-by-one error in WS16C48 resource region extent
The WinSystems WS16C48 I/O address region spans offsets 0x0 through 0xA,
which is a total of 11 bytes. Fix the WS16C48_EXTENT define to the
correct value of 11 so that access to necessary device registers is
properly requested in the ws16c48_probe() callback by the
devm_request_region() function call.
Fixes: 2c05a0f29f41 ("gpio: ws16c48: Implement and utilize register structures")
Cc: stable@vger.kernel.org
Cc: Paul Demetrotion <pdemetrotion@winsystems.com>
Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
| -rw-r--r-- | drivers/gpio/gpio-ws16c48.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpio/gpio-ws16c48.c b/drivers/gpio/gpio-ws16c48.c index e73885a4dc3287..afb42a8e916fe1 100644 --- a/drivers/gpio/gpio-ws16c48.c +++ b/drivers/gpio/gpio-ws16c48.c @@ -18,7 +18,7 @@ #include <linux/spinlock.h> #include <linux/types.h> -#define WS16C48_EXTENT 10 +#define WS16C48_EXTENT 11 #define MAX_NUM_WS16C48 max_num_isa_dev(WS16C48_EXTENT) static unsigned int base[MAX_NUM_WS16C48]; |