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| author | Ming Lei <[email protected]> | 2019-06-06 08:34:08 +0000 |
|---|---|---|
| committer | Martin K. Petersen <[email protected]> | 2019-06-20 19:21:33 +0000 |
| commit | b79d9a09ae23c7047bdce3a15e284398334198ea (patch) | |
| tree | b2cdeab4564fdd2bc3706eb1aa0864e3e4ec1e6f /drivers/scsi/pmcraid.c | |
| parent | scsi: core: avoid preallocating big SGL for data (diff) | |
| download | kernel-b79d9a09ae23c7047bdce3a15e284398334198ea.tar.gz kernel-b79d9a09ae23c7047bdce3a15e284398334198ea.zip | |
scsi: lib/sg_pool.c: clear 'first_chunk' in case of no preallocation
If user doesn't ask to preallocate by passing zero 'nents_first_chunk' to
sg_alloc_table_chained, we need to make sure that 'first_chunk' is cleared.
Otherwise, __sg_alloc_table() still may think that the 1st SGL should be
from the preallocation.
Fixes the issue by clearing 'first_chunk' in sg_alloc_table_chained() if
'nents_first_chunk' is zero.
Cc: Christoph Hellwig <[email protected]>
Cc: Bart Van Assche <[email protected]>
Cc: Ewan D. Milne <[email protected]>
Cc: Hannes Reinecke <[email protected]>
Cc: Guenter Roeck <[email protected]>
Reported-by: Guenter Roeck <[email protected]>
Tested-by: Guenter Roeck <[email protected]>
Signed-off-by: Ming Lei <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
Diffstat (limited to 'drivers/scsi/pmcraid.c')
0 files changed, 0 insertions, 0 deletions