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| author | Tejun Heo <htejun@gmail.com> | 2006-12-11 12:15:31 -0500 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2006-12-16 10:13:22 -0500 |
| commit | 33480a0ede8dcc7e6483054279008f972bd56fd3 (patch) | |
| tree | db0f1ad9f3e7ba78a7f12d3a2ed3dc0e7534ac67 /drivers/ata/pata_oldpiix.c | |
| parent | c10340aca270abb141154cd93dcf1be0b92143fc (diff) | |
[PATCH] libata: don't initialize sg in ata_exec_internal() if DMA_NONE (take #2)
Calling sg_init_one() with NULL buf causes oops on certain
configurations. Don't initialize sg in ata_exec_internal() if
DMA_NONE and make the function complain if @buf is NULL when dma_dir
isn't DMA_NONE. While at it, fix comment.
The problem is discovered and initial patch was submitted by Arnd
Bergmann.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/ata/pata_oldpiix.c')
0 files changed, 0 insertions, 0 deletions