diff options
| author | Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> | 2021-04-07 17:45:35 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-05-14 09:50:19 +0200 |
| commit | 7bb63ed88189a55d1d618264dafbe37a1f285b56 (patch) | |
| tree | b2ff47799bf52e14b241a33cad0fe7b7454c640b /drivers/memory | |
| parent | 71bcc1b4a1743534d8abdcb57ff912e6bc390438 (diff) | |
memory: samsung: exynos5422-dmc: handle clk_set_parent() failure
[ Upstream commit 132c17c3ff878c7beaba51bdd275d5cc654c0e33 ]
clk_set_parent() can fail and ignoring such case could lead to invalid
clock setup for given frequency.
Addresses-Coverity: Unchecked return value
Fixes: 6e7674c3c6df ("memory: Add DMC driver for Exynos5422")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Link: https://lore.kernel.org/r/20210407154535.70756-1-krzysztof.kozlowski@canonical.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/memory')
| -rw-r--r-- | drivers/memory/samsung/exynos5422-dmc.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/memory/samsung/exynos5422-dmc.c b/drivers/memory/samsung/exynos5422-dmc.c index c5ee4121a4d2..3d230f07eaf2 100644 --- a/drivers/memory/samsung/exynos5422-dmc.c +++ b/drivers/memory/samsung/exynos5422-dmc.c @@ -1298,7 +1298,9 @@ static int exynos5_dmc_init_clks(struct exynos5_dmc *dmc) dmc->curr_volt = target_volt; - clk_set_parent(dmc->mout_mx_mspll_ccore, dmc->mout_spll); + ret = clk_set_parent(dmc->mout_mx_mspll_ccore, dmc->mout_spll); + if (ret) + return ret; clk_prepare_enable(dmc->fout_bpll); clk_prepare_enable(dmc->mout_bpll); |