summary refs log tree commit diff
path: root/drivers/mmc/host
diff options
context:
space:
mode:
authorJarkko Lavinen <jarkko.lavinen@nokia.com>2009-04-08 11:18:32 +0300
committerPierre Ossman <pierre@ossman.eu>2009-04-08 20:43:38 +0200
commita8fe29d8bcdfbf85ba26c7f3522c4bdfbc83e71d (patch)
tree1a70e1da0502a26b9c0544c84acf026975b49922 /drivers/mmc/host
parentd31f65e8464927f2cfdee6b0b01b9e3a8ce5db9c (diff)
downloadlinux-a8fe29d8bcdfbf85ba26c7f3522c4bdfbc83e71d.tar.gz
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 <jarkko.lavinen@nokia.com>
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
Diffstat (limited to 'drivers/mmc/host')
-rw-r--r--drivers/mmc/host/omap_hsmmc.c2
1 files changed, 1 insertions, 1 deletions
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);