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gpio: gpio-xilinx: Fix integer overflow

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[ 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>
This commit is contained in:
Srinivas Neeli 2022-07-21 13:09:09 +05:30 committed by Greg Kroah-Hartman
parent ce3731c615
commit e129e5486b
1 changed files with 1 additions and 1 deletions
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2
drivers/gpio/gpio-xilinx.c
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@ -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)