From a8fe29d8bcdfbf85ba26c7f3522c4bdfbc83e71d Mon Sep 17 00:00:00 2001 From: Jarkko Lavinen Date: Wed, 8 Apr 2009 11:18:32 +0300 Subject: [PATCH] omap_hsmmc: Do not expect cmd/data to be non-null when CC/TC occurs With spurious interrupt cmd can be null even when we have CC set in irq status. Fixes: NB#106295 - prevent potential kernel crash in the MMC driver Signed-off-by: Jarkko Lavinen Signed-off-by: Adrian Hunter Signed-off-by: Pierre Ossman --- drivers/mmc/host/omap_hsmmc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index d765df29ee15..e62a22a7f00c 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -493,7 +493,7 @@ static irqreturn_t mmc_omap_irq(int irq, void *dev_id) /* Flush posted write */ OMAP_HSMMC_READ(host->base, STAT); - if (end_cmd || (status & CC)) + if (end_cmd || ((status & CC) && host->cmd)) mmc_omap_cmd_done(host, host->cmd); if (end_trans || (status & TC)) mmc_omap_xfer_done(host, data); -- 2.30.2