diff options
| author | Alexey Khoroshilov <khoroshilov@ispras.ru> | 2017-02-10 23:54:46 +0100 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2017-04-24 21:41:13 +0200 |
| commit | 21b22284619bbb201775c125af53f2834eb91674 (patch) | |
| tree | 51091b0dcd41590d3c54ce7dbc381807b5b26bac /drivers/mmc/host/sdhci-pxav2.c | |
| parent | mmc: meson-gx: replace magic timeout numbers with constants (diff) | |
| download | linux-21b22284619bbb201775c125af53f2834eb91674.tar.xz linux-21b22284619bbb201775c125af53f2834eb91674.zip | |
mmc: sdhci-pxav2: add error handling of clk_prepare_enable()
There is no check if clk_prepare_enable() succeed in sdhci_pxav2_probe().
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host/sdhci-pxav2.c')
| -rw-r--r-- | drivers/mmc/host/sdhci-pxav2.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/mmc/host/sdhci-pxav2.c b/drivers/mmc/host/sdhci-pxav2.c index 347eae2d7b6a..80513f54e9d4 100644 --- a/drivers/mmc/host/sdhci-pxav2.c +++ b/drivers/mmc/host/sdhci-pxav2.c @@ -185,7 +185,11 @@ static int sdhci_pxav2_probe(struct platform_device *pdev) goto err_clk_get; } pltfm_host->clk = clk; - clk_prepare_enable(clk); + ret = clk_prepare_enable(clk); + if (ret) { + dev_err(&pdev->dev, "failed to enable io clock\n"); + goto err_clk_enable; + } host->quirks = SDHCI_QUIRK_BROKEN_ADMA | SDHCI_QUIRK_BROKEN_TIMEOUT_VAL @@ -228,6 +232,7 @@ static int sdhci_pxav2_probe(struct platform_device *pdev) err_add_host: clk_disable_unprepare(clk); +err_clk_enable: clk_put(clk); err_clk_get: sdhci_pltfm_free(pdev); |