diff options
| author | Stephen Boyd <sboyd@kernel.org> | 2019-07-31 12:35:13 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-07 18:56:45 +0200 |
| commit | 89dc59fb267d6d3a0d47fe8480982b451e06831f (patch) | |
| tree | cc6fbb0a8d3aa7c1212908192e6a9c4c04325ebd /drivers/clk | |
| parent | bd3a445c2717e1380079958760cef058e5017fb1 (diff) | |
| download | linux-stable-89dc59fb267d6d3a0d47fe8480982b451e06831f.tar.gz linux-stable-89dc59fb267d6d3a0d47fe8480982b451e06831f.tar.bz2 linux-stable-89dc59fb267d6d3a0d47fe8480982b451e06831f.zip | |
clk: sirf: Don't reference clk_init_data after registration
[ Upstream commit af55dadfbce35b4f4c6247244ce3e44b2e242b84 ]
A future patch is going to change semantics of clk_register() so that
clk_hw::init is guaranteed to be NULL after a clk is registered. Avoid
referencing this member here so that we don't run into NULL pointer
exceptions.
Cc: Guo Zeng <Guo.Zeng@csr.com>
Cc: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190731193517.237136-6-sboyd@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/clk')
| -rw-r--r-- | drivers/clk/sirf/clk-common.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/clk/sirf/clk-common.c b/drivers/clk/sirf/clk-common.c index d8f9efa5129a..25351d6a55ba 100644 --- a/drivers/clk/sirf/clk-common.c +++ b/drivers/clk/sirf/clk-common.c @@ -298,9 +298,10 @@ static u8 dmn_clk_get_parent(struct clk_hw *hw) { struct clk_dmn *clk = to_dmnclk(hw); u32 cfg = clkc_readl(clk->regofs); + const char *name = clk_hw_get_name(hw); /* parent of io domain can only be pll3 */ - if (strcmp(hw->init->name, "io") == 0) + if (strcmp(name, "io") == 0) return 4; WARN_ON((cfg & (BIT(3) - 1)) > 4); @@ -312,9 +313,10 @@ static int dmn_clk_set_parent(struct clk_hw *hw, u8 parent) { struct clk_dmn *clk = to_dmnclk(hw); u32 cfg = clkc_readl(clk->regofs); + const char *name = clk_hw_get_name(hw); /* parent of io domain can only be pll3 */ - if (strcmp(hw->init->name, "io") == 0) + if (strcmp(name, "io") == 0) return -EINVAL; cfg &= ~(BIT(3) - 1); @@ -354,7 +356,8 @@ static long dmn_clk_round_rate(struct clk_hw *hw, unsigned long rate, { unsigned long fin; unsigned ratio, wait, hold; - unsigned bits = (strcmp(hw->init->name, "mem") == 0) ? 3 : 4; + const char *name = clk_hw_get_name(hw); + unsigned bits = (strcmp(name, "mem") == 0) ? 3 : 4; fin = *parent_rate; ratio = fin / rate; @@ -376,7 +379,8 @@ static int dmn_clk_set_rate(struct clk_hw *hw, unsigned long rate, struct clk_dmn *clk = to_dmnclk(hw); unsigned long fin; unsigned ratio, wait, hold, reg; - unsigned bits = (strcmp(hw->init->name, "mem") == 0) ? 3 : 4; + const char *name = clk_hw_get_name(hw); + unsigned bits = (strcmp(name, "mem") == 0) ? 3 : 4; fin = parent_rate; ratio = fin / rate; |