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authorIngo Molnar <mingo@elte.hu>2009-01-16 10:09:10 +0100
committerIngo Molnar <mingo@elte.hu>2009-01-16 10:09:10 +0100
commitaf2519fb2298cdf7540082c36f4d8c66bbff103f (patch)
tree1d290d28d42d42f9e693457762c4008988628060 /drivers/ata/libata-sff.c
parent961d7d0ee5150e0197cc81c2a8884ecb230276e2 (diff)
parent7cb36b6ccdca03bd87e8faca7fd920643dd1aec7 (diff)
downloadlinux-af2519fb2298cdf7540082c36f4d8c66bbff103f.tar.bz2
Merge branch 'linus' into core/iommu
Conflicts: arch/ia64/include/asm/dma-mapping.h arch/ia64/include/asm/machvec.h arch/ia64/include/asm/machvec_sn2.h
Diffstat (limited to 'drivers/ata/libata-sff.c')
-rw-r--r--drivers/ata/libata-sff.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index 0eae9b453556..5a4aad123c42 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -1013,9 +1013,12 @@ next_sg:
qc->cursg_ofs = 0;
}
- /* consumed can be larger than count only for the last transfer */
- WARN_ON_ONCE(qc->cursg && count != consumed);
-
+ /*
+ * There used to be a WARN_ON_ONCE(qc->cursg && count != consumed);
+ * Unfortunately __atapi_pio_bytes doesn't know enough to do the WARN
+ * check correctly as it doesn't know if it is the last request being
+ * made. Somebody should implement a proper sanity check.
+ */
if (bytes)
goto next_sg;
return 0;