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ltq-atm: add Linux 5.0+ compatibility

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Upstream commit 96d4f267e40f95 ("Remove 'type' argument from access_ok()
function") removes the first argument to access_ok.
Adjust the code so it builds with Linux 5.4.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Mathias Kresin <dev@kresin.me>
This commit is contained in:
Mathias Kresin 2019-07-07 17:13:18 +02:00
parent c01c01891c
commit a3539c82cb
1 changed files with 8 additions and 0 deletions
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8
package/kernel/lantiq/ltq-atm/src/ltq_atm.c
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@ -289,9 +289,17 @@ static int ppe_ioctl(struct atm_dev *dev, unsigned int cmd, void *arg)
return -ENOTTY;
if ( _IOC_DIR(cmd) & _IOC_READ )
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,0,0)
ret = !access_ok(arg, _IOC_SIZE(cmd));
#else
ret = !access_ok(VERIFY_WRITE, arg, _IOC_SIZE(cmd));
#endif
else if ( _IOC_DIR(cmd) & _IOC_WRITE )
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,0,0)
ret = !access_ok(arg, _IOC_SIZE(cmd));
#else
ret = !access_ok(VERIFY_READ, arg, _IOC_SIZE(cmd));
#endif
if ( ret )
return -EFAULT;