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kernel: fix cryptodev with kernel >= 2.6.35

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The fix is from http://sourceforge.net/mailarchive/forum.php?thread_name=20100906035717.GA7562%40mcafee.com&forum_name=ocf-linux-users

Thank you tripolar for reporting the issue and finding a solution for it.

SVN-Revision: 24286
This commit is contained in:
Hauke Mehrtens 2010-12-06 17:01:10 +00:00
parent 3945267a99
commit 0fc35b30e3
1 changed files with 8 additions and 2 deletions
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10
target/linux/generic/files/crypto/ocf/cryptodev.c
View file

@ -977,10 +977,16 @@ cryptodev_open(struct inode *inode, struct file *filp)
struct fcrypt *fcr;
dprintk("%s()\n", __FUNCTION__);
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,35)
/*
* on 2.6.35 private_data points to a miscdevice structure, we override
* it, which is currently safe to do.
*/
if (filp->private_data) {
printk("cryptodev: Private data already exists !\n");
return(0);
printk("cryptodev: Private data already exists - %p!\n", filp->private_data);
return(-ENODEV);
}
#endif
fcr = kmalloc(sizeof(*fcr), GFP_KERNEL);
if (!fcr) {