block: Handle partition read errors more consistently

Set p->v to NULL if we try to read beyond the end of the disk, just like
we do if we get an error returned from trying to read the disk.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>

diff --git a/block/partitions/core.c b/block/partitions/core.c
index 52871fa..58034dd 100644 (file)
--- a/block/partitions/core.c
+++ b/block/partitions/core.c
@@ -709,7 +709,7 @@ void *read_part_sector(struct parsed_partitions *state, sector_t n, Sector *p)
 
        if (n >= get_capacity(state->disk)) {
                state->access_beyond_eod = true;
-               return NULL;
+               goto out;
        }
 
        page = read_mapping_page(mapping,