X-Git-Url: https://git.stricted.de/?a=blobdiff_plain;f=drivers%2Fblock%2Fxsysace.c;h=b71888b909a0e43dea2ad8cf36faffb1de27701b;hb=04ab9ef97771ba88789672a1f0d0ddcf8dbc0924;hp=ac278ac908d50a8b27046d5a3424558809e0f621;hpb=33659ebbae262228eef4e0fe990f393d1f0ed941;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git

diff --git a/drivers/block/xsysace.c b/drivers/block/xsysace.c
index ac278ac908d5..b71888b909a0 100644
--- a/drivers/block/xsysace.c
+++ b/drivers/block/xsysace.c
@@ -89,6 +89,7 @@
 #include <linux/delay.h>
 #include <linux/slab.h>
 #include <linux/blkdev.h>
+#include <linux/smp_lock.h>
 #include <linux/ata.h>
 #include <linux/hdreg.h>
 #include <linux/platform_device.h>
@@ -901,11 +902,14 @@ static int ace_open(struct block_device *bdev, fmode_t mode)
 
 	dev_dbg(ace->dev, "ace_open() users=%i\n", ace->users + 1);
 
+	lock_kernel();
 	spin_lock_irqsave(&ace->lock, flags);
 	ace->users++;
 	spin_unlock_irqrestore(&ace->lock, flags);
 
 	check_disk_change(bdev);
+	unlock_kernel();
+
 	return 0;
 }
 
@@ -917,6 +921,7 @@ static int ace_release(struct gendisk *disk, fmode_t mode)
 
 	dev_dbg(ace->dev, "ace_release() users=%i\n", ace->users - 1);
 
+	lock_kernel();
 	spin_lock_irqsave(&ace->lock, flags);
 	ace->users--;
 	if (ace->users == 0) {
@@ -924,6 +929,7 @@ static int ace_release(struct gendisk *disk, fmode_t mode)
 		ace_out(ace, ACE_CTRL, val & ~ACE_CTRL_LOCKREQ);
 	}
 	spin_unlock_irqrestore(&ace->lock, flags);
+	unlock_kernel();
 	return 0;
 }