* [PATCH 6/6] Handle possible bio_alloc failure in bounce buffer
@ 2009-04-14 11:06 Nikanth Karthikesan
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From: Nikanth Karthikesan @ 2009-04-14 11:06 UTC (permalink / raw)
To: Jens Axboe; +Cc: linux-kernel, Andrew Morton
Handle possible bio_alloc failure in bounce buffer.
Signed-off-by: Nikanth Karthikesan <knikanth@suse.de>
---
Index: linux-2.6/mm/bounce.c
===================================================================
--- linux-2.6.orig/mm/bounce.c
+++ linux-2.6/mm/bounce.c
@@ -202,6 +202,9 @@ static void __blk_queue_bounce(struct re
unsigned int cnt = (*bio_orig)->bi_vcnt;
bio = bio_alloc(GFP_NOIO, cnt);
+ if (unlikely(!bio))
+ panic("Unable to allocate bios\n");
+
memset(bio->bi_io_vec, 0, cnt * sizeof(struct bio_vec));
}
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