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authorSrinivas Neeli <srinivas.neeli@xilinx.com>2022-07-21 10:39:09 +0300
committerBartosz Golaszewski <brgl@bgdev.pl>2022-07-22 10:17:03 +0300
commit32c094a09d5829ad9b02cdf667569aefa8de0ea6 (patch)
tree63f4afcc754bfbdfaddc64231d2d678526fd0bb7 /drivers
parentf63731e18e8d8350e05b0176e39a76639f6483c7 (diff)
downloadlinux-32c094a09d5829ad9b02cdf667569aefa8de0ea6.tar.xz
gpio: gpio-xilinx: Fix integer overflow
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpio/gpio-xilinx.c2
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)