diff options
| -rw-r--r-- | drivers/ata/libata-sff.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index 0eae9b45355..5a4aad123c4 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; |