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| author | Adrian Hunter <adrian.hunter@intel.com> | 2018-12-10 11:56:25 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2018-12-17 10:26:24 +0300 |
| commit | 9f0ea0bda1d06120b053bb0c283f54afec59293d (patch) | |
| tree | 22992a2a154bafead0ee408502ce9de70dab2323 | |
| parent | ea6d027312111c6d96309ad1a684b33cb37e6764 (diff) | |
| download | linux-9f0ea0bda1d06120b053bb0c283f54afec59293d.tar.xz | |
mmc: sdhci-omap: Fix timeout checks
Always check the wait condition before returning timeout.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
| -rw-r--r-- | drivers/mmc/host/sdhci-omap.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/mmc/host/sdhci-omap.c b/drivers/mmc/host/sdhci-omap.c index f588ab679cb0..ecf905066c56 100644 --- a/drivers/mmc/host/sdhci-omap.c +++ b/drivers/mmc/host/sdhci-omap.c @@ -221,8 +221,12 @@ static void sdhci_omap_conf_bus_power(struct sdhci_omap_host *omap_host, /* wait 1ms */ timeout = ktime_add_ms(ktime_get(), SDHCI_OMAP_TIMEOUT); - while (!(sdhci_omap_readl(omap_host, SDHCI_OMAP_HCTL) & HCTL_SDBP)) { - if (WARN_ON(ktime_after(ktime_get(), timeout))) + while (1) { + bool timedout = ktime_after(ktime_get(), timeout); + + if (sdhci_omap_readl(omap_host, SDHCI_OMAP_HCTL) & HCTL_SDBP) + break; + if (WARN_ON(timedout)) return; usleep_range(5, 10); } @@ -655,8 +659,12 @@ static void sdhci_omap_init_74_clocks(struct sdhci_host *host, u8 power_mode) /* wait 1ms */ timeout = ktime_add_ms(ktime_get(), SDHCI_OMAP_TIMEOUT); - while (!(sdhci_omap_readl(omap_host, SDHCI_OMAP_STAT) & INT_CC_EN)) { - if (WARN_ON(ktime_after(ktime_get(), timeout))) + while (1) { + bool timedout = ktime_after(ktime_get(), timeout); + + if (sdhci_omap_readl(omap_host, SDHCI_OMAP_STAT) & INT_CC_EN) + break; + if (WARN_ON(timedout)) return; usleep_range(5, 10); } |