diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/host/mmci.c | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index a723ed2883f9..5d20bfba3e49 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -960,9 +960,17 @@ mmci_cmd_irq(struct mmci_host *host, struct mmc_command *cmd, unsigned int status) { void __iomem *base = host->base; - bool sbc = (cmd == host->mrq->sbc); - bool busy_resp = host->variant->busy_detect && - (cmd->flags & MMC_RSP_BUSY); + bool sbc, busy_resp; + + if (!cmd) + return; + + sbc = (cmd == host->mrq->sbc); + busy_resp = host->variant->busy_detect && (cmd->flags & MMC_RSP_BUSY); + + if (!((status|host->busy_status) & (MCI_CMDCRCFAIL|MCI_CMDTIMEOUT| + MCI_CMDSENT|MCI_CMDRESPEND))) + return; /* Check if we need to wait for busy completion. */ if (host->busy_status && (status & MCI_ST_CARDBUSY)) @@ -1209,8 +1217,6 @@ static irqreturn_t mmci_irq(int irq, void *dev_id) spin_lock(&host->lock); do { - struct mmc_command *cmd; - status = readl(host->base + MMCISTATUS); if (host->singleirq) { @@ -1230,11 +1236,7 @@ static irqreturn_t mmci_irq(int irq, void *dev_id) dev_dbg(mmc_dev(host->mmc), "irq0 (data+cmd) %08x\n", status); - cmd = host->cmd; - if ((status|host->busy_status) & (MCI_CMDCRCFAIL|MCI_CMDTIMEOUT| - MCI_CMDSENT|MCI_CMDRESPEND) && cmd) - mmci_cmd_irq(host, cmd, status); - + mmci_cmd_irq(host, host->cmd, status); mmci_data_irq(host, host->data, status); /* Don't poll for busy completion in irq context. */ |