xtensa: fix change_bit in exclusive access option

change_bit implementation for XCHAL_HAVE_EXCLUSIVE case changes all bits
except the one required due to copy-paste error from clear_bit.

Cc: stable@vger.kernel.org # v5.2+
Fixes: f7c34874f0 ("xtensa: add exclusive atomics support")
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
This commit is contained in:
Max Filippov 2019-10-15 21:51:43 -07:00
parent 0c401fdf27
commit 775fd6bfef
1 changed files with 1 additions and 1 deletions

View File

@ -148,7 +148,7 @@ static inline void change_bit(unsigned int bit, volatile unsigned long *p)
" getex %0\n"
" beqz %0, 1b\n"
: "=&a" (tmp)
: "a" (~mask), "a" (p)
: "a" (mask), "a" (p)
: "memory");
}