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clk: iproc: fix bit manipulation arithmetic

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A 32-bit variable should be type casted to 64-bit before arithmetic
operation and assigning it to a 64-bit variable

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Ray Jui <rjui@broadcom.com>
Fixes: 5fe225c105 ("clk: iproc: add initial common clock support")
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
This commit is contained in:
Ray Jui 2015-06-29 14:30:10 -07:00 committed by Stephen Boyd
parent 45a481c217
commit 69916d9609
1 changed files with 3 additions and 2 deletions
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5
drivers/clk/bcm/clk-iproc-pll.c
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@ -366,7 +366,7 @@ static unsigned long iproc_pll_recalc_rate(struct clk_hw *hw,
val = readl(pll->pll_base + ctrl->ndiv_int.offset);
ndiv_int = (val >> ctrl->ndiv_int.shift) &
bit_mask(ctrl->ndiv_int.width);
ndiv = ndiv_int << ctrl->ndiv_int.shift;
ndiv = (u64)ndiv_int << ctrl->ndiv_int.shift;
if (ctrl->flags & IPROC_CLK_PLL_HAS_NDIV_FRAC) {
val = readl(pll->pll_base + ctrl->ndiv_frac.offset);
@ -374,7 +374,8 @@ static unsigned long iproc_pll_recalc_rate(struct clk_hw *hw,
bit_mask(ctrl->ndiv_frac.width);
if (ndiv_frac != 0)
ndiv = (ndiv_int << ctrl->ndiv_int.shift) | ndiv_frac;
ndiv = ((u64)ndiv_int << ctrl->ndiv_int.shift) |
ndiv_frac;
}
val = readl(pll->pll_base + ctrl->pdiv.offset);