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new helper: uaccess_kernel()

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Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Al Viro 2017-03-20 21:08:07 -04:00
commit db68ce10c4
32 changed files with 44 additions and 42 deletions
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2
block/bsg.c
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@ -650,7 +650,7 @@ bsg_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
dprintk("%s: write %zd bytes\n", bd->name, count);
if (unlikely(segment_eq(get_fs(), KERNEL_DS)))
if (unlikely(uaccess_kernel()))
return -EINVAL;
bsg_set_block(bd, file);