diff options
Diffstat (limited to 'lib/iov_iter.c')
| -rw-r--r-- | lib/iov_iter.c | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/lib/iov_iter.c b/lib/iov_iter.c index e14749711e34..7d3158d1f8ea 100644 --- a/lib/iov_iter.c +++ b/lib/iov_iter.c @@ -1368,9 +1368,6 @@ static ssize_t iter_xarray_get_pages(struct iov_iter *i, size_t size = maxsize; loff_t pos; - if (!size || !maxpages) - return 0; - pos = i->xarray_start + i->iov_offset; index = pos >> PAGE_SHIFT; offset = pos & ~PAGE_MASK; @@ -1440,10 +1437,11 @@ ssize_t iov_iter_get_pages(struct iov_iter *i, if (maxsize > i->count) maxsize = i->count; - if (!maxsize) + if (!maxsize || !maxpages) return 0; if (maxsize > MAX_RW_COUNT) maxsize = MAX_RW_COUNT; + BUG_ON(!pages); if (likely(user_backed_iter(i))) { unsigned int gup_flags = 0; @@ -1522,9 +1520,6 @@ static ssize_t iter_xarray_get_pages_alloc(struct iov_iter *i, size_t size = maxsize; loff_t pos; - if (!size) - return 0; - pos = i->xarray_start + i->iov_offset; index = pos >> PAGE_SHIFT; offset = pos & ~PAGE_MASK; |