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| author | Srinivas Neeli <srinivas.neeli@xilinx.com> | 2022-07-21 13:09:09 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-07-29 17:28:13 +0200 |
| commit | 6f16a5390640807dde420ee5ccbc4c95577aea6a (patch) | |
| tree | 80e6a03144869d9f32915a732e25e10cf34b79b6 | |
| parent | ea857726df55a2bfb54d76ee757270cb9776fc6c (diff) | |
| download | linux-6f16a5390640807dde420ee5ccbc4c95577aea6a.tar.gz linux-6f16a5390640807dde420ee5ccbc4c95577aea6a.tar.bz2 linux-6f16a5390640807dde420ee5ccbc4c95577aea6a.zip | |
gpio: gpio-xilinx: Fix integer overflow
[ Upstream commit 32c094a09d5829ad9b02cdf667569aefa8de0ea6 ]
Current implementation is not able to configure more than 32 pins
due to incorrect data type. So type casting with unsigned long
to avoid it.
Fixes: 02b3f84d9080 ("xilinx: Switch to use bitmap APIs")
Signed-off-by: Srinivas Neeli <srinivas.neeli@xilinx.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/gpio/gpio-xilinx.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpio/gpio-xilinx.c b/drivers/gpio/gpio-xilinx.c index b6d3a57e27ed..7f8e2fed2988 100644 --- a/drivers/gpio/gpio-xilinx.c +++ b/drivers/gpio/gpio-xilinx.c @@ -99,7 +99,7 @@ static inline void xgpio_set_value32(unsigned long *map, int bit, u32 v) const unsigned long offset = (bit % BITS_PER_LONG) & BIT(5); map[index] &= ~(0xFFFFFFFFul << offset); - map[index] |= v << offset; + map[index] |= (unsigned long)v << offset; } static inline int xgpio_regoffset(struct xgpio_instance *chip, int ch) |