4.14-stable review patch. If anyone has any objections, please let me know.
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From: Aaro Koskinen aaro.koskinen@iki.fi
[ Upstream commit e283655b5abe26462d53d5196f186c5e8863af3b ]
We should zero an array using sizeof instead of number of elements.
Fixes the following compiler (GCC 7.3.0) warnings:
drivers/macintosh/rack-meter.c: In function 'rackmeter_do_pause': drivers/macintosh/rack-meter.c:157:2: warning: 'memset' used with length equal to number of elements without multiplication by element size [-Wmemset-elt-size] drivers/macintosh/rack-meter.c:158:2: warning: 'memset' used with length equal to number of elements without multiplication by element size [-Wmemset-elt-size]
Fixes: 4f7bef7a9f69 ("drivers: macintosh: rack-meter: fix bogus memsets") Reported-by: Stephen Rothwell sfr@canb.auug.org.au Signed-off-by: Aaro Koskinen aaro.koskinen@iki.fi Signed-off-by: Michael Ellerman mpe@ellerman.id.au Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/macintosh/rack-meter.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/macintosh/rack-meter.c +++ b/drivers/macintosh/rack-meter.c @@ -154,8 +154,8 @@ static void rackmeter_do_pause(struct ra DBDMA_DO_STOP(rm->dma_regs); return; } - memset(rdma->buf1, 0, ARRAY_SIZE(rdma->buf1)); - memset(rdma->buf2, 0, ARRAY_SIZE(rdma->buf2)); + memset(rdma->buf1, 0, sizeof(rdma->buf1)); + memset(rdma->buf2, 0, sizeof(rdma->buf2));
rm->dma_buf_v->mark = 0;