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| author | Linus Walleij <triad@df.lth.se> | 2008-10-24 22:17:50 +0200 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-10-28 01:00:42 +0100 |
| commit | 9e9430213f85ebdaf40026ec790295420efd0f91 (patch) | |
| tree | f1e2ee98fade8b1c66c129f4b92dd00e9e06207e | |
| parent | Merge branch 'for-linus' of git://neil.brown.name/md (diff) | |
| download | linux-9e9430213f85ebdaf40026ec790295420efd0f91.tar.xz linux-9e9430213f85ebdaf40026ec790295420efd0f91.zip | |
[ARM] 5322/1: Fix fastpath issue in mmci.c
Fix fastpath issues
Since mmci_request() can be called from a non-interrupt
context, and does, during kernel init, causing a host
of debug messages during boot if you enable spinlock debugging,
we need to use the spinlock calls that save IRQ flags and
restore them.
Signed-off-by: Linus Walleij <triad@df.lth.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| -rw-r--r-- | drivers/mmc/host/mmci.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index 696cf3647ceb..2fadf323c696 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -391,6 +391,7 @@ static irqreturn_t mmci_irq(int irq, void *dev_id) static void mmci_request(struct mmc_host *mmc, struct mmc_request *mrq) { struct mmci_host *host = mmc_priv(mmc); + unsigned long flags; WARN_ON(host->mrq != NULL); @@ -402,7 +403,7 @@ static void mmci_request(struct mmc_host *mmc, struct mmc_request *mrq) return; } - spin_lock_irq(&host->lock); + spin_lock_irqsave(&host->lock, flags); host->mrq = mrq; @@ -411,7 +412,7 @@ static void mmci_request(struct mmc_host *mmc, struct mmc_request *mrq) mmci_start_command(host, mrq->cmd, 0); - spin_unlock_irq(&host->lock); + spin_unlock_irqrestore(&host->lock, flags); } static void mmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) |