Handle possible bio_alloc failure in submit_bh.
Signed-off-by: Nikanth Karthikesan <[email protected]>
---
Index: linux-2.6/fs/buffer.c
===================================================================
--- linux-2.6.orig/fs/buffer.c
+++ linux-2.6/fs/buffer.c
@@ -2922,6 +2922,8 @@ int submit_bh(int rw, struct buffer_head
* submit_bio -> generic_make_request may further map this bio around
*/
bio = bio_alloc(GFP_NOIO, 1);
+ if (unlikely(!bio))
+ panic("Failed to allocate bio\n");
bio->bi_sector = bh->b_blocknr * (bh->b_size >> 9);
bio->bi_bdev = bh->b_bdev;