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drm: fixup some of the ioctl function exit paths 

Signed-off-by: Dave Airlie <airlied@linux.ie>
This commit is contained in:
Dave Airlie 2008-02-07 14:51:32 +10:00
parent 19a8f59ab8
commit 9d5b3ffc42
1 changed files with 7 additions and 5 deletions
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12
drivers/char/drm/drm_drv.c
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@ -495,23 +495,25 @@ int drm_ioctl(struct inode *inode, struct file *filp,
} else {
if (cmd & (IOC_IN | IOC_OUT)) {
kdata = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL);
if (!kdata)
return -ENOMEM;
if (!kdata) {
retcode = -ENOMEM;
goto err_i1;
}
}
if (cmd & IOC_IN) {
if (copy_from_user(kdata, (void __user *)arg,
_IOC_SIZE(cmd)) != 0) {
retcode = -EACCES;
retcode = -EFAULT;
goto err_i1;
}
}
retcode = func(dev, kdata, file_priv);
if (cmd & IOC_OUT) {
if ((retcode == 0) && (cmd & IOC_OUT)) {
if (copy_to_user((void __user *)arg, kdata,
_IOC_SIZE(cmd)) != 0)
retcode = -EACCES;
retcode = -EFAULT;
}
}