diff options
| author | Peter Maydell <peter.maydell@linaro.org> | 2015-06-15 18:06:08 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2015-06-15 18:06:08 +0100 |
| commit | 644ead5be1a851abff16886240c5c6fc1c5137c0 (patch) | |
| tree | b2ecf5ebe983e9ce1ed1f1eaa957c143c3d9e075 | |
| parent | 235069a380147e31236b94c31528fc5170c3a421 (diff) | |
hw/display/exynos4210_fimd: Fix bit-swapping code
fimd_swap_data() includes code to reverse the bits in a
64-bit integer, but an off-by-one error meant that it would
try to shift off the top of the integer. Correct the bug
(spotted by Coverity).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1432912615-23107-1-git-send-email-peter.maydell@linaro.org
| -rw-r--r-- | hw/display/exynos4210_fimd.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/display/exynos4210_fimd.c b/hw/display/exynos4210_fimd.c index 72b3a1d063..603ef50568 100644 --- a/hw/display/exynos4210_fimd.c +++ b/hw/display/exynos4210_fimd.c @@ -337,7 +337,7 @@ static inline void fimd_swap_data(unsigned int swap_ctl, uint64_t *data) if (swap_ctl & FIMD_WINCON_SWAP_BITS) { res = 0; for (i = 0; i < 64; i++) { - if (x & (1ULL << (64 - i))) { + if (x & (1ULL << (63 - i))) { res |= (1ULL << i); } } |