diff options
author | Shawn Lin <shawn.lin@rock-chips.com> | 2018-03-21 10:39:20 +0800 |
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committer | Heiko Stuebner <heiko@sntech.de> | 2018-03-23 09:08:43 +0100 |
commit | 0d92d1802ced45dab0cbb1d130ace7410bcaec99 (patch) | |
tree | 38beed4e362decabef0efa0934fe91a3a34dd23c | |
parent | 570fda972b3178f9a981d1b7ac18e05245a52eab (diff) | |
download | linux-0d92d1802ced45dab0cbb1d130ace7410bcaec99.tar.gz |
clk: rockchip: Fix error return in phase clock registration
The newly added clock notifier may return an error code but so far the error output in the function would only return an error pointer from registering the clock. So when the clock notifier fails the clock would be unregistered but the return would still be the clock pointer which could then not be dereferenced correctly. So fix the error handling to prevent that. Fixes: 60cf09e45fbc ("clk: rockchip: Restore the clock phase after the rate was changed") Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
-rw-r--r-- | drivers/clk/rockchip/clk-mmc-phase.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/clk/rockchip/clk-mmc-phase.c b/drivers/clk/rockchip/clk-mmc-phase.c index b7b9f2e7d64b..026a26bb702d 100644 --- a/drivers/clk/rockchip/clk-mmc-phase.c +++ b/drivers/clk/rockchip/clk-mmc-phase.c @@ -223,8 +223,10 @@ struct clk *rockchip_clk_register_mmc(const char *name, mmc_clock->shift = shift; clk = clk_register(NULL, &mmc_clock->hw); - if (IS_ERR(clk)) + if (IS_ERR(clk)) { + ret = PTR_ERR(clk); goto err_register; + } mmc_clock->clk_rate_change_nb.notifier_call = &rockchip_mmc_clk_rate_notify; @@ -237,5 +239,5 @@ err_notifier: clk_unregister(clk); err_register: kfree(mmc_clock); - return clk; + return ERR_PTR(ret); } |